WEBVTT

00:00:00.000 --> 00:00:02.180
All right, let's dive right into something that's

00:00:02.180 --> 00:00:04.919
becoming, well, a major challenge in orthopedics,

00:00:05.179 --> 00:00:07.360
especially with more and more people living longer,

00:00:07.620 --> 00:00:10.419
having active lives. We're talking about fractures

00:00:10.419 --> 00:00:13.179
around existing hip replacements. Now, these

00:00:13.179 --> 00:00:14.980
aren't your typical broken bones. They present

00:00:14.980 --> 00:00:17.140
a unique sort of puzzle for us in the medical

00:00:17.140 --> 00:00:20.079
field. They really do. And the global rise in

00:00:20.079 --> 00:00:22.859
these periprosthetic hip fractures, it's directly

00:00:22.859 --> 00:00:26.019
linked to the incredible success and just the

00:00:26.019 --> 00:00:29.420
sheer volume of total hip arthroplasties, THAs

00:00:29.420 --> 00:00:32.159
being performed worldwide. What's also quite

00:00:32.159 --> 00:00:35.119
fascinating is that we're seeing THAs not just

00:00:35.119 --> 00:00:37.380
in the elderly, but increasingly in younger,

00:00:37.420 --> 00:00:40.859
more active individuals. And that naturally broadens

00:00:40.859 --> 00:00:42.759
the spectrum of potential complications, and

00:00:42.759 --> 00:00:44.880
it challenges us to adapt, doesn't it? Absolutely.

00:00:45.039 --> 00:00:47.280
It changes the game somewhat. And beyond the

00:00:47.280 --> 00:00:49.299
immediate clinical complexity for the patient,

00:00:49.759 --> 00:00:51.920
there's also a significant economic impact these

00:00:51.920 --> 00:00:54.140
injuries have on health care systems. It's not

00:00:54.140 --> 00:00:56.689
insignificant. Not at all. Today, we have Professor

00:00:56.689 --> 00:00:58.969
Mo Imam with us, an expert guide who will help

00:00:58.969 --> 00:01:01.829
us navigate this, well, intricate and evolving

00:01:01.829 --> 00:01:04.670
area. Our mission for this deep dive is to give

00:01:04.670 --> 00:01:07.890
you, our listener, a comprehensive, up -to -date

00:01:07.890 --> 00:01:10.150
understanding of how these fractures are managed

00:01:10.150 --> 00:01:11.930
right from the moment they're diagnosed through

00:01:11.930 --> 00:01:14.430
to rehabilitation. It's truly a compelling area

00:01:14.430 --> 00:01:16.670
because, you know, these fractures represent

00:01:16.670 --> 00:01:19.829
a critical crossroads. It's trauma surgery meeting

00:01:19.829 --> 00:01:24.500
arthroplasty. They demand a very specific combined

00:01:24.500 --> 00:01:27.859
skill set from orthopedic surgeons, often pushing

00:01:27.859 --> 00:01:31.540
the boundaries of our expertise. And their effective

00:01:31.540 --> 00:01:33.480
management isn't just about technical surgical

00:01:33.480 --> 00:01:36.980
skill, it truly requires seamless multidisciplinary

00:01:36.980 --> 00:01:39.920
input to achieve the best, most lasting outcomes

00:01:39.920 --> 00:01:42.319
for the patient. This isn't a problem one specialist

00:01:42.319 --> 00:01:44.650
can solve alone. That immediately highlights

00:01:44.650 --> 00:01:47.590
just how multifaceted this challenge is. So let's

00:01:47.590 --> 00:01:49.390
begin by trying to understand the sheer scale

00:01:49.390 --> 00:01:52.209
of the issue. Just how common are these periprosthetic

00:01:52.209 --> 00:01:54.510
fractures? And what are the main factors putting

00:01:54.510 --> 00:01:56.810
patients at such a heightened risk? Could you

00:01:56.810 --> 00:01:59.049
give us a sense of the incidence and maybe the

00:01:59.049 --> 00:02:01.730
typical mechanisms of injury we're seeing? Certainly.

00:02:02.689 --> 00:02:04.750
Periprosthetic fractures around the hip, they

00:02:04.750 --> 00:02:07.189
can occur during two distinct periods, either

00:02:07.189 --> 00:02:09.409
intraoperatively so, right there on the operating

00:02:09.409 --> 00:02:11.789
table during the surgery itself. Okay. Or post

00:02:11.789 --> 00:02:14.150
-operatively, which is, you know, after the procedure

00:02:14.150 --> 00:02:17.349
has been completed. Now, looking at intraoperative

00:02:17.349 --> 00:02:21.050
fractures, they are notably more common in unsubstmented

00:02:21.050 --> 00:02:23.849
total hip arthroplasties. We're talking about

00:02:23.849 --> 00:02:27.990
roughly 5 .4 % of cases. 5 .4%, okay. Which stands

00:02:27.990 --> 00:02:31.389
in stark contrast to cemented THAs, where the

00:02:31.389 --> 00:02:33.569
incidence is much lower, maybe around 0 .3%.

00:02:33.629 --> 00:02:36.270
Big difference. Huge difference. And what's particularly

00:02:36.270 --> 00:02:39.009
striking is that this risk escalates significantly

00:02:39.009 --> 00:02:41.870
during revision surgery. It jumps to an alarming

00:02:41.870 --> 00:02:46.490
20. 0 .9%. Wow, 20%. Compared to a primary arthroplasty

00:02:46.490 --> 00:02:49.750
where it's about 3 .6%. Now this tells us something

00:02:49.750 --> 00:02:53.030
profound about the perhaps compromised bone quality

00:02:53.030 --> 00:02:55.349
or the altered anatomy we often encounter in

00:02:55.349 --> 00:02:57.310
those revision cases. Right, the underlying bone

00:02:57.310 --> 00:03:00.789
isn't pristine anymore. Exactly. Then, postoperatively,

00:03:01.030 --> 00:03:03.509
the incidence of paraprosthetic femoral fractures

00:03:03.509 --> 00:03:07.449
is less than 1 % after a primary THA, which sounds

00:03:07.449 --> 00:03:10.969
low, but it can rise to as much as 4 % following

00:03:10.969 --> 00:03:13.650
revision surgery. So that indicates a kind of

00:03:13.650 --> 00:03:16.930
cumulative risk over time. The overall lifetime

00:03:16.930 --> 00:03:20.129
risk after any THA is estimated somewhere between

00:03:20.129 --> 00:03:24.550
0 .4 % and 3 .5%. And it's crucial to understand

00:03:24.550 --> 00:03:26.710
their significance in the bigger picture. These

00:03:26.710 --> 00:03:29.310
fractures are the third most common reason overall

00:03:29.310 --> 00:03:32.870
for THA revision. Third most common. Yes. And

00:03:32.870 --> 00:03:35.090
interestingly, they climb to become the second

00:03:35.090 --> 00:03:37.229
most common reason beyond the fourth year post

00:03:37.229 --> 00:03:40.840
-primary THA. That's a trend consistently observed

00:03:40.840 --> 00:03:43.680
in large national data sets, like the Swedish

00:03:43.680 --> 00:03:46.479
national hip arthroplasty register, which gives

00:03:46.479 --> 00:03:49.039
us invaluable long -term data. That long -term

00:03:49.039 --> 00:03:52.300
perspective is key. It is. And while periprosthetic

00:03:52.300 --> 00:03:54.379
femoral fractures are overwhelmingly the most

00:03:54.379 --> 00:03:56.520
common type we discuss, it's worth remembering

00:03:56.520 --> 00:03:59.120
that acetabular fractures affecting the hip socket

00:03:59.120 --> 00:04:02.039
can also occur. Ah, yes. These are much rarer,

00:04:02.060 --> 00:04:04.599
making up only about one -tenth of all THA -related

00:04:04.599 --> 00:04:07.360
fractures. And they predominantly happen intraoperatively,

00:04:07.560 --> 00:04:09.400
often to the force involved in planting a new

00:04:09.400 --> 00:04:12.020
cup. Right, getting that cup seeded. Precisely.

00:04:12.419 --> 00:04:14.960
As for the mechanism of injury for the post -operative

00:04:14.960 --> 00:04:18.920
fractures, the vast majority, around 86%, result

00:04:18.920 --> 00:04:22.439
from surprisingly low energy trauma. 86 % low

00:04:22.439 --> 00:04:25.339
energy. Yes. We're talking about simple falls

00:04:25.339 --> 00:04:27.899
from standing height. This isn't about high impact

00:04:27.899 --> 00:04:30.379
car accidents in healthy individuals. It speaks

00:04:30.379 --> 00:04:34.620
volumes about the fragility and often the comorbidities

00:04:34.620 --> 00:04:37.350
present in this patient demographic. I find that

00:04:37.350 --> 00:04:39.730
fascinating that these low energy falls account

00:04:39.730 --> 00:04:42.490
for such a high percentage. It almost feels counterintuitive.

00:04:42.490 --> 00:04:45.189
You'd expect high impact trauma, but it's often

00:04:45.189 --> 00:04:47.290
the simple trip that causes the catastrophic

00:04:47.290 --> 00:04:49.490
failure, isn't it? That's precisely the point.

00:04:49.649 --> 00:04:52.149
It's often not a major external force, but an

00:04:52.149 --> 00:04:54.569
underlying systemic vulnerability. Right. So

00:04:54.569 --> 00:04:56.910
given that, what are the key patient related

00:04:56.910 --> 00:04:59.470
risk factors that truly contribute to this underlying

00:04:59.470 --> 00:05:01.750
vulnerability? Well, several patient characteristics

00:05:01.750 --> 00:05:03.829
consistently contribute to an increased risk.

00:05:04.000 --> 00:05:06.139
Female gender and advanced age are frequently

00:05:06.139 --> 00:05:08.819
cited, largely due to age -related bone density

00:05:08.819 --> 00:05:11.620
loss and higher rates of osteoporosis. However,

00:05:12.000 --> 00:05:13.800
it's worth noting that while these are common

00:05:13.800 --> 00:05:16.199
associations, the evidence across the literature

00:05:16.199 --> 00:05:18.860
can sometimes be a bit inconsistent on their

00:05:18.860 --> 00:05:21.959
independent impact. Ah, okay. Nuance there. Exactly.

00:05:22.639 --> 00:05:24.879
But what is consistently identified are certain

00:05:24.879 --> 00:05:27.779
underlying medical conditions. Ochaeoprosis,

00:05:27.779 --> 00:05:30.560
of course, is a significant one, but also rheumatoid

00:05:30.560 --> 00:05:33.480
arthritis, Paget's disease, and developmental

00:05:33.480 --> 00:05:36.439
hip dysplasia, all of which compromise bone quality

00:05:36.439 --> 00:05:39.860
and integrity. Crucially, an increased time from

00:05:39.860 --> 00:05:42.459
the initial archerplasty procedure is also a

00:05:42.459 --> 00:05:46.360
significant factor, as implants' age, bone remodels,

00:05:46.420 --> 00:05:48.779
and bone quality can naturally deteriorate over

00:05:48.779 --> 00:05:51.040
decades. So the longer you have the hip replacement,

00:05:51.180 --> 00:05:53.220
the higher the risk, potentially? Potentially,

00:05:53.339 --> 00:05:55.879
yes. The cumulative risk increases. Beyond these

00:05:55.879 --> 00:05:58.740
specific diagnoses, age -linked comorbidities,

00:05:59.079 --> 00:06:01.319
particularly osteoporosis and cognitive decline,

00:06:01.860 --> 00:06:03.939
pose substantial and compounding challenges.

00:06:04.810 --> 00:06:06.829
Osteoporosis, as you might expect, doesn't just

00:06:06.829 --> 00:06:09.009
make fractures more likely. It also makes them

00:06:09.009 --> 00:06:11.189
significantly harder to stabilize once they occur.

00:06:11.550 --> 00:06:13.750
The bone itself just lacks the structural integrity

00:06:13.750 --> 00:06:16.230
for screws or plates to hold securely. Right.

00:06:16.269 --> 00:06:18.709
Fixation becomes a real issue. A major issue.

00:06:19.310 --> 00:06:21.769
And cognitive decline, on the other hand, creates

00:06:21.769 --> 00:06:24.850
this cascade of risks. It impairs a patient's

00:06:24.850 --> 00:06:27.110
judgment and balance, making falls more frequent.

00:06:27.769 --> 00:06:30.370
But it also profoundly impacts their ability

00:06:30.370 --> 00:06:33.949
to understand and comply with the complex post

00:06:33.949 --> 00:06:36.129
-surgical regimens, things like weight -bearing

00:06:36.129 --> 00:06:39.329
restrictions or specific movements, which are

00:06:39.329 --> 00:06:42.269
absolutely vital for successful recovery and

00:06:42.269 --> 00:06:44.769
preventing further complications. It's a truly

00:06:44.769 --> 00:06:47.069
holistic risk picture, you see. It sounds like

00:06:47.069 --> 00:06:49.629
a deeply intertwined web of patient health and

00:06:49.629 --> 00:06:52.589
as you touched upon, the implant itself. On that

00:06:52.589 --> 00:06:54.709
note, what about the implant design and the surgical

00:06:54.709 --> 00:06:56.930
technique itself? How do those contribute to

00:06:56.930 --> 00:06:58.949
the risk profile? Are there certain choices or

00:06:58.949 --> 00:07:01.110
technical considerations that increase or decrease

00:07:01.110 --> 00:07:03.629
the likelihood of these fractures? Indeed. Implant

00:07:03.629 --> 00:07:06.110
design and the meticulousness of surgical technique

00:07:06.110 --> 00:07:08.949
play a profound role. Several key factors here

00:07:08.949 --> 00:07:11.730
are well established. Stem malposition during

00:07:11.730 --> 00:07:13.829
the initial surgery, for instance. Ah, placement.

00:07:14.110 --> 00:07:16.529
Exactly. Where the femoral stem isn't aligned

00:07:16.529 --> 00:07:18.930
perfectly, that can create stress risers in the

00:07:18.930 --> 00:07:22.449
bone, making it more prone to fracture. Pre -existing

00:07:22.449 --> 00:07:25.629
osteolysis, that's bone loss due to where particles

00:07:25.629 --> 00:07:27.670
from the implant or asymptotic loosening of the

00:07:27.670 --> 00:07:30.089
implant, means the bone around the prosthesis

00:07:30.089 --> 00:07:32.350
is already compromised before any trauma occurs.

00:07:32.370 --> 00:07:34.029
Right, it's weakened. It's weakened already.

00:07:34.629 --> 00:07:36.589
And the patient's surgical history specifically,

00:07:37.170 --> 00:07:38.889
the number of previous surgeries to the same

00:07:38.889 --> 00:07:42.129
region also increases risk, often due to altered

00:07:42.129 --> 00:07:44.490
anatomy, scarring, and reduced blood supply.

00:07:44.639 --> 00:07:48.459
Now, when we delve into implant types, cementless

00:07:48.459 --> 00:07:51.360
femoral implants have been consistently associated

00:07:51.360 --> 00:07:53.860
with a higher incidence of periprosthetic fractures,

00:07:54.300 --> 00:07:57.000
both during the surgery itself and in the postoperative

00:07:57.000 --> 00:08:00.139
period. Okay, cementless specifically. Yes. For

00:08:00.139 --> 00:08:02.259
example, studies have indicated that intraoperative

00:08:02.259 --> 00:08:05.279
fractures occur up to 14 times more often with

00:08:05.279 --> 00:08:09.100
uncemented components. 14 times? Wow. It's significant.

00:08:09.920 --> 00:08:12.259
And this risk is particularly pronounced in female

00:08:12.259 --> 00:08:15.480
patients over 65 years old who receive unsubmitted

00:08:15.480 --> 00:08:18.060
components, highlighting a specific vulnerable

00:08:18.060 --> 00:08:21.259
subgroup. While postoperative fractures are also

00:08:21.259 --> 00:08:23.839
more common with unsubmitted implants, interestingly,

00:08:24.379 --> 00:08:26.240
this seems to be independent of age and gender.

00:08:26.300 --> 00:08:29.300
Interesting. Specific implant designs also matter

00:08:29.300 --> 00:08:32.049
significantly. There's been a notable three -fold

00:08:32.049 --> 00:08:34.889
increase in periprosthetic fracture rates observed

00:08:34.889 --> 00:08:37.049
with single -wedge and double -wedge implants

00:08:37.049 --> 00:08:40.230
when compared to anatomical, fully -coated, or

00:08:40.230 --> 00:08:42.210
taper -drowning components. For shape matters.

00:08:42.389 --> 00:08:44.649
The shape and how it engages the bone absolutely

00:08:44.649 --> 00:08:47.210
matters. The difference lies in how these stems

00:08:47.210 --> 00:08:50.669
engage with the bone and distribute stress. For

00:08:50.669 --> 00:08:53.769
cemented implants, exitotype, or force -closed

00:08:53.769 --> 00:08:56.250
stems, which are designed to subside slightly

00:08:56.250 --> 00:08:58.730
into the cement mantle, creating stability through

00:08:58.730 --> 00:09:01.139
a wedge effect. They tend to show a higher risk

00:09:01.139 --> 00:09:03.379
of periprosthetic fracture than charnel type

00:09:03.379 --> 00:09:06.779
or composite beam stems. Charnel type aim for

00:09:06.779 --> 00:09:09.340
more rigid fixation and distribute stress differently

00:09:09.340 --> 00:09:12.740
along the bone cement interface. It's a fundamental

00:09:12.740 --> 00:09:15.480
difference in biomechanical philosophy that directly

00:09:15.480 --> 00:09:17.740
impacts how the implant interacts with the bone

00:09:17.740 --> 00:09:20.779
and consequently its susceptibility to fracture.

00:09:21.100 --> 00:09:23.649
That makes sense. And lastly, Paraprosthetic

00:09:23.649 --> 00:09:25.950
acetabular fractures are typically linked to

00:09:25.950 --> 00:09:28.470
unsubmitted press -fit elliptical cups, again

00:09:28.470 --> 00:09:30.450
due to the mechanics of their initial fixation.

00:09:30.870 --> 00:09:33.789
So yes, the choice of implant, its precise placement,

00:09:33.830 --> 00:09:36.570
and its inherent biomechanical properties are

00:09:36.570 --> 00:09:39.129
absolutely paramount. That level of detail on

00:09:39.129 --> 00:09:41.870
implant mechanics is crucial. Now, once a fracture

00:09:41.870 --> 00:09:44.470
is suspected, the initial assessment is, as you

00:09:44.470 --> 00:09:47.110
said, absolutely critical. What's involved in

00:09:47.110 --> 00:09:49.889
thoroughly evaluating these cases? And how do

00:09:49.889 --> 00:09:52.230
classification systems guide your decision making,

00:09:52.470 --> 00:09:54.330
especially considering the challenges you mentioned

00:09:54.330 --> 00:09:56.690
in preoperative stability confirmation? Right,

00:09:56.789 --> 00:09:59.070
the initial clinical and radiological assessment

00:09:59.070 --> 00:10:01.730
is the absolute cornerstone of managing these

00:10:01.730 --> 00:10:04.690
complex cases. It always begins with a detailed

00:10:04.690 --> 00:10:07.169
clinical history and a thorough examination.

00:10:08.210 --> 00:10:10.149
Most patients present following a low -energy

00:10:10.149 --> 00:10:12.950
trauma, so establishing that clear context is

00:10:12.950 --> 00:10:16.279
vital. However, it's equally crucial to dig deeper

00:10:16.279 --> 00:10:18.740
and ascertain if there were any pre -existing

00:10:18.740 --> 00:10:21.240
worsening symptoms before the acute injury. Ah,

00:10:21.460 --> 00:10:24.279
like warning signs. Exactly. Things like persistent

00:10:24.279 --> 00:10:27.139
thigh pain, the notorious start -up pain, or

00:10:27.139 --> 00:10:29.720
groin pain. These could be subtle indicators

00:10:29.720 --> 00:10:33.080
of an already loose or failing prosthesis, which

00:10:33.080 --> 00:10:35.179
would fundamentally alter your management strategy.

00:10:35.259 --> 00:10:38.440
A critical, often overlooked step is actively

00:10:38.440 --> 00:10:41.490
ruling out infection. periprosthetic joint infection,

00:10:41.850 --> 00:10:44.990
or PGI. It's been reported in about 11 .6 % of

00:10:44.990 --> 00:10:47.629
periprosthetic fractures. 11%, that's quite high.

00:10:47.830 --> 00:10:50.429
It is, and it can be devastating. However, a

00:10:50.429 --> 00:10:52.450
significant challenge is that standard inflammatory

00:10:52.450 --> 00:10:55.350
markers like white cell count, ESR, and CRP,

00:10:55.389 --> 00:10:57.750
while healthful, have been shown to have, well,

00:10:58.110 --> 00:11:00.549
poor predictive value for deep PGI. So they aren't

00:11:00.549 --> 00:11:02.809
reliable enough on their own? Not always, no.

00:11:03.289 --> 00:11:06.350
If clinical suspicion for PGI is low, we typically

00:11:06.350 --> 00:11:08.990
proceed with surgery. taking multiple intraoperative

00:11:08.990 --> 00:11:11.789
tissue samples for culture and histology to confirm.

00:11:12.429 --> 00:11:14.549
But if there's a high clinical suspicion based

00:11:14.549 --> 00:11:17.090
on the patient's history or exam, preoperative

00:11:17.090 --> 00:11:19.269
aspiration and biopsies are strongly recommended

00:11:19.269 --> 00:11:21.830
to guide subsequent antibiotic and surgical planning.

00:11:22.250 --> 00:11:24.029
You need that information up front. Makes sense.

00:11:24.289 --> 00:11:27.389
Radiological imaging is, of course, vital. Full

00:11:27.389 --> 00:11:29.529
-length X -rays of the entire femur extending

00:11:29.529 --> 00:11:31.570
from the hip to the knee and a comprehensive

00:11:31.570 --> 00:11:34.139
pelvis view are essential. These allow us to

00:11:34.139 --> 00:11:36.480
determine the fracture's precise location, its

00:11:36.480 --> 00:11:39.700
characteristics as it's spiral, transverse, commonoted,

00:11:40.340 --> 00:11:43.220
and crucially, to assess the prosthesis' stability

00:11:43.220 --> 00:11:46.460
and, for cemented components, the integrity of

00:11:46.460 --> 00:11:49.019
the cement mantle. It's also incredibly helpful

00:11:49.019 --> 00:11:51.299
to retrieve all previous imaging, if available.

00:11:52.120 --> 00:11:54.240
A patient's radiological history can often reveal

00:11:54.240 --> 00:11:57.120
subtle signs of component migration or pre -existing

00:11:57.120 --> 00:12:00.120
osteolysis, guiding us to potential weak spots.

00:12:00.320 --> 00:12:03.289
Looking for changes over time. Exactly. A CT

00:12:03.289 --> 00:12:05.750
scan is also standard practice now. It provides

00:12:05.750 --> 00:12:08.590
more detailed information on bone stock, the

00:12:08.590 --> 00:12:11.090
exact fracture pattern in three dimensions, and

00:12:11.090 --> 00:12:12.710
the integrity and stability of the components,

00:12:12.830 --> 00:12:16.090
especially around the stem. Now, regarding the

00:12:16.090 --> 00:12:18.549
challenge of preoperative THA stability confirmation,

00:12:18.690 --> 00:12:21.470
you hit on a key point. There's a reported 20

00:12:21.470 --> 00:12:24.210
% discrepancy between what we think we see on

00:12:24.210 --> 00:12:26.649
preoperative imaging and what we actually find

00:12:26.649 --> 00:12:29.710
intraoperatively. 20%. That's a big gap. It's

00:12:29.710 --> 00:12:33.580
a significant gap. Indirect methods such as assessing

00:12:33.580 --> 00:12:36.159
distal implant translation or using fluoroscopy

00:12:36.159 --> 00:12:38.259
in the clinic are often inconclusive if they

00:12:38.259 --> 00:12:40.860
are negative. Ultimately, the most reliable method

00:12:40.860 --> 00:12:43.259
remains the hands -on intraoperative assessment

00:12:43.259 --> 00:12:45.799
during surgical exploration. So you really only

00:12:45.799 --> 00:12:48.120
know for sure once you're in there? Pretty much.

00:12:48.759 --> 00:12:51.600
This 20 % discrepancy isn't just a number. It

00:12:51.600 --> 00:12:53.480
fundamentally shifts how surgeons must approach

00:12:53.480 --> 00:12:56.139
these cases. It forces an extraordinary level

00:12:56.139 --> 00:12:59.690
of intraoperative adaptability. A true test of

00:12:59.690 --> 00:13:02.230
surgical intuition, beyond what any scan can

00:13:02.230 --> 00:13:04.309
tell you beforehand. It highlights the art as

00:13:04.309 --> 00:13:06.870
much as the science of orthopedics. This is why

00:13:06.870 --> 00:13:09.210
thorough planning with clear contingency strategies

00:13:09.210 --> 00:13:11.429
is absolutely crucial. You have to be ready for

00:13:11.429 --> 00:13:15.070
Plan B or even Plan C. That 20 % unknown is enough

00:13:15.070 --> 00:13:17.669
to keep any surgeon up at night, isn't it? So

00:13:17.669 --> 00:13:19.490
once you have that comprehensive assessment,

00:13:19.690 --> 00:13:22.179
understanding these nuances, How do classification

00:13:22.179 --> 00:13:24.480
systems like the Vancouver system help guide

00:13:24.480 --> 00:13:26.820
precise management decisions, especially given

00:13:26.820 --> 00:13:28.600
those diagnostic challenges you highlighted?

00:13:29.019 --> 00:13:31.279
Indeed, it emphasizes the need for surgical readiness.

00:13:32.269 --> 00:13:34.389
Classification systems are absolutely fundamental

00:13:34.389 --> 00:13:36.509
to guiding management. They provide a common

00:13:36.509 --> 00:13:38.889
language and a framework. The Vancouver classification

00:13:38.889 --> 00:13:41.970
system remains by far the most widely used and

00:13:41.970 --> 00:13:44.929
accepted system for femoral pair prosthetic fractures.

00:13:45.309 --> 00:13:48.070
It's rather elegant in its simplicity, categorizing

00:13:48.070 --> 00:13:50.950
fractures based on three key parameters. The

00:13:50.950 --> 00:13:52.850
precise location of the fracture relative to

00:13:52.850 --> 00:13:55.309
the implant, the stability of the implant itself,

00:13:55.669 --> 00:13:57.769
and the quality of the surrounding bone. Okay,

00:13:57.950 --> 00:14:00.389
location, stability, bone quality. Precisely.

00:14:00.570 --> 00:14:03.309
To quickly summarize its main types, AG describes

00:14:03.309 --> 00:14:05.690
fractures of the greater trochanter, AL for the

00:14:05.690 --> 00:14:07.970
lesser trochanter. Then we move into the more

00:14:07.970 --> 00:14:10.549
complex B types, which are around the stem. B1

00:14:10.549 --> 00:14:12.470
indicates a fracture where the implant is stable.

00:14:12.990 --> 00:14:16.129
B2 means the implant is unstable. And B3 signifies

00:14:16.129 --> 00:14:18.649
an unstable implant combined with poor, deficient

00:14:18.649 --> 00:14:21.990
bone stock. Okay, B1 stable, B2 unstable, B3

00:14:21.990 --> 00:14:25.230
unstable, plus bad bone. You've got it. Finally,

00:14:25.389 --> 00:14:27.549
type C fractures occur well below the stem tip.

00:14:28.280 --> 00:14:31.440
However, despite its widespread utility, the

00:14:31.440 --> 00:14:33.659
Vancouver classification has its limitations.

00:14:34.379 --> 00:14:36.360
A significant finding from a Swedish study, for

00:14:36.360 --> 00:14:39.059
instance, revealed only a 34 % agreement between

00:14:39.059 --> 00:14:41.980
surgeon and radiologist classifications for B1

00:14:41.980 --> 00:14:45.559
fractures. Only 34 % agreement? That's low. It

00:14:45.559 --> 00:14:48.159
is surprisingly low. Yeah. And it dramatically

00:14:48.159 --> 00:14:51.039
highlights the real challenge in accurately differentiating

00:14:51.039 --> 00:14:54.659
a B1 from a B2 based solely on radiographs before

00:14:54.659 --> 00:14:57.919
surgery. This again underscores why intraoperative

00:14:57.919 --> 00:15:00.820
assessment of stem stability through direct palpation

00:15:00.820 --> 00:15:03.759
and manipulation is absolutely paramount to confirm

00:15:03.759 --> 00:15:06.360
the classification and therefore guide the definitive

00:15:06.360 --> 00:15:08.600
treatment. So the x -ray gives you a clue, but

00:15:08.600 --> 00:15:10.960
the final decision is made in theater. Essentially

00:15:10.960 --> 00:15:13.720
yes. Beyond Vancouver, the Unified Classification

00:15:13.720 --> 00:15:16.679
System, or UCS, is a newer, more comprehensive

00:15:16.679 --> 00:15:19.330
system. It's designed to classify all paraprosthetic

00:15:19.330 --> 00:15:21.649
fractures, regardless of their anatomical site,

00:15:21.750 --> 00:15:23.990
so not just the hip. It's shown strong intra

00:15:23.990 --> 00:15:25.889
-observer agreement for experienced orthopedic

00:15:25.889 --> 00:15:29.210
surgeons around .920, which is good, but notably

00:15:29.210 --> 00:15:32.450
lower for residents at .772, indicating there's

00:15:32.450 --> 00:15:34.529
a learning curve. Right. It's a broader role

00:15:34.529 --> 00:15:36.690
in everyday clinical decision -making versus

00:15:36.690 --> 00:15:38.850
research is still being thoroughly evaluated.

00:15:39.730 --> 00:15:42.179
We also have other... more specific systems,

00:15:42.360 --> 00:15:44.940
such as the Poprosky system and Pasquerella et

00:15:44.940 --> 00:15:47.899
al.'s method, tailored specifically for periprosthetic

00:15:47.899 --> 00:15:50.899
acetabular fractures. These systems provide a

00:15:50.899 --> 00:15:53.059
vital framework, but as you rightly pointed out,

00:15:53.379 --> 00:15:56.080
profound clinical judgment, continuously informed

00:15:56.080 --> 00:15:59.179
by intraoperative findings, is always the ultimate

00:15:59.179 --> 00:16:02.679
guide. So we've nailed down how to classify these

00:16:02.679 --> 00:16:04.519
fractures, but the real challenge, the art of

00:16:04.519 --> 00:16:07.559
orthopedics, begins now. Yeah. Choosing the right

00:16:07.559 --> 00:16:09.980
weapon for the right battle. Because, as you've

00:16:09.980 --> 00:16:12.519
highlighted, a Vancouver B3 is a world away from

00:16:12.519 --> 00:16:15.980
an AG fracture. How do you even begin to tailor

00:16:15.980 --> 00:16:18.200
a strategy when there's no true one -size -fits

00:16:18.200 --> 00:16:20.500
-all for such varied injuries? What are those

00:16:20.500 --> 00:16:22.399
fundamental principles guiding your approach

00:16:22.399 --> 00:16:24.940
to optimal management? You've perfectly articulated

00:16:24.940 --> 00:16:27.519
the core dilemma. There's simply no cookbook

00:16:27.519 --> 00:16:30.440
for these cases. A highly individualized approach

00:16:30.440 --> 00:16:33.340
is utterly essential. Treatment decisions must

00:16:33.340 --> 00:16:36.159
carefully consider a whole constellation of factors.

00:16:36.879 --> 00:16:39.679
The patient's existing comorbidities, are they

00:16:39.679 --> 00:16:42.419
diabetic? Do they have cardiac issues? What were

00:16:42.419 --> 00:16:44.120
their functional levels before the fracture?

00:16:44.580 --> 00:16:46.460
What's the confirmed stability of the implant?

00:16:46.980 --> 00:16:49.419
And critically, what are the available resources

00:16:49.419 --> 00:16:52.379
and surgical expertise? That last point is important,

00:16:52.460 --> 00:16:55.179
isn't it? Not every hospital has the same kit

00:16:55.179 --> 00:16:57.940
or experience. Precisely. Not every center has

00:16:57.940 --> 00:17:00.080
the same level of specialized equipment or surgeon

00:17:00.080 --> 00:17:03.500
experience with complex revisions. And not infrequently,

00:17:03.940 --> 00:17:06.259
multidisciplinary input is critical, often involving

00:17:06.259 --> 00:17:08.539
geriatricians, infectious disease specialists,

00:17:08.839 --> 00:17:11.339
or intensivists. There's a growing recognition

00:17:11.339 --> 00:17:13.859
of the need for focused clinical pathways for

00:17:13.859 --> 00:17:16.240
paraprosthetic fractures, mirroring what we've

00:17:16.240 --> 00:17:18.039
successfully implemented for other fragility

00:17:18.039 --> 00:17:20.759
fractures like native hip fractures. Ah, like

00:17:20.759 --> 00:17:23.670
the neck of femur pathways. Yes, exactly. This

00:17:23.670 --> 00:17:26.470
signifies a systemic evolution in how we approach

00:17:26.470 --> 00:17:30.250
comprehensive care, moving beyond just the immediate

00:17:30.250 --> 00:17:32.890
surgical fix to a more holistic standardized

00:17:32.890 --> 00:17:36.200
patient journey. Historically, non -operative

00:17:36.200 --> 00:17:38.779
treatment of paraprosthetic fractures has generally

00:17:38.779 --> 00:17:40.940
been associated with pretty dismal outcomes.

00:17:41.440 --> 00:17:44.460
We're talking non -unions, malunions, and significantly

00:17:44.460 --> 00:17:47.000
increased medical complications. This is why

00:17:47.000 --> 00:17:48.940
operative intervention is now overwhelmingly

00:17:48.940 --> 00:17:51.599
the contemporary choice for almost all cases.

00:17:52.299 --> 00:17:54.599
The only real exceptions are critically ill patients

00:17:54.599 --> 00:17:56.819
who simply cannot physiologically withstand major

00:17:56.819 --> 00:18:00.059
surgery. However, it's worth noting some newer

00:18:00.059 --> 00:18:02.319
emerging evidence on anabolic drug therapies

00:18:02.319 --> 00:18:05.339
like teraparotide combined with specific non

00:18:05.339 --> 00:18:07.940
-operative protocols. Even for very minimally

00:18:07.940 --> 00:18:10.359
displaced B2 fractures, this could potentially

00:18:10.359 --> 00:18:13.039
offer an alternative for extremely frail patients

00:18:13.039 --> 00:18:15.619
who are otherwise inoperable. Still early days,

00:18:15.680 --> 00:18:17.559
perhaps. Interesting potential development there.

00:18:17.799 --> 00:18:20.779
It is. Once surgical treatment is decided, several

00:18:20.779 --> 00:18:23.559
fundamental principles come into play. Meticulous

00:18:23.559 --> 00:18:26.009
preoperative planning is paramount. And this

00:18:26.009 --> 00:18:28.769
isn't just a cursory glance at x -rays. It involves

00:18:28.769 --> 00:18:31.509
detailed revision templating, virtually placing

00:18:31.509 --> 00:18:34.369
implants on images to plan size and position,

00:18:34.809 --> 00:18:37.069
and verifying that all appropriate surgical kits,

00:18:37.609 --> 00:18:39.829
including revision instruments and possible backup

00:18:39.829 --> 00:18:42.289
implants, are physically available in the hospital.

00:18:42.509 --> 00:18:44.809
Checking the kit beforehand is vital. Absolutely.

00:18:45.349 --> 00:18:47.329
The surgical approach must be chosen carefully

00:18:47.329 --> 00:18:49.970
to minimize soft tissue damage, preserving the

00:18:49.970 --> 00:18:52.700
critical blood supply to the bone. And, given

00:18:52.700 --> 00:18:55.019
the potential for unexpected findings, particularly

00:18:55.019 --> 00:18:58.079
with that 20 % discrepancy we discussed, having

00:18:58.079 --> 00:19:00.259
robust backup plans for different scenarios is

00:19:00.259 --> 00:19:02.859
always essential. This truly highlights the necessity

00:19:02.859 --> 00:19:05.119
of having combined advanced trauma and arthroplasty

00:19:05.119 --> 00:19:07.500
skills within the operating team. You need both

00:19:07.500 --> 00:19:10.279
skill sets. You really do. The overarching aim

00:19:10.279 --> 00:19:13.599
of the procedure is always consistent. Restore

00:19:13.599 --> 00:19:16.640
anatomical alignment with a stable implant. preserve

00:19:16.640 --> 00:19:19.259
existing bone stock wherever possible, promote

00:19:19.259 --> 00:19:22.519
predictable fracture union, and, crucially, enable

00:19:22.519 --> 00:19:25.000
early patient mobilization and preservation of

00:19:25.000 --> 00:19:28.220
joint motion. The specific choice of implant

00:19:28.220 --> 00:19:30.599
and technique is then ultimately guided by the

00:19:30.599 --> 00:19:33.420
fracture's precise location and complexity, the

00:19:33.420 --> 00:19:36.160
prosthesis's confirmed stability, and the quantity

00:19:36.160 --> 00:19:39.450
and quality of remaining bone stock. all balanced

00:19:39.450 --> 00:19:41.589
against individual patient factors like their

00:19:41.589 --> 00:19:45.089
physiology, bone healing potential, and any existing

00:19:45.089 --> 00:19:47.470
comorbidities. That's a remarkably comprehensive

00:19:47.470 --> 00:19:49.970
framework. Let's talk specifics now, starting

00:19:49.970 --> 00:19:52.690
with Vancouver type A fractures, which involve

00:19:52.690 --> 00:19:55.289
the proximal trochanteric region. How are these

00:19:55.289 --> 00:19:57.730
typically managed and what are the nuances for

00:19:57.730 --> 00:20:00.009
each subtype? Right, Vancouver type A fractures

00:20:00.009 --> 00:20:02.490
are typically the least complex. They involve

00:20:02.490 --> 00:20:04.589
either the greater trochanter, classified as

00:20:04.589 --> 00:20:08.579
AG, or the lesser trochanter, AL. For AG fractures

00:20:08.579 --> 00:20:10.920
involving the greater trochanter, these are generally

00:20:10.920 --> 00:20:13.039
considered stable fractures. They're very often

00:20:13.039 --> 00:20:15.500
managed not operatively. So no surgery usually?

00:20:16.000 --> 00:20:18.359
Often not. Just a period of protected weight

00:20:18.359 --> 00:20:20.660
bearing and restricted active hip abduction for

00:20:20.660 --> 00:20:23.140
approximately 6 to 12 weeks. This allows the

00:20:23.140 --> 00:20:26.039
trochanter to heal in place. However, surgical

00:20:26.039 --> 00:20:28.359
fixation, using simple techniques like wires,

00:20:28.559 --> 00:20:30.779
cables, or small, speculized plates, becomes

00:20:30.779 --> 00:20:32.819
indicated if there's a symptomatic nonunion,

00:20:32.880 --> 00:20:35.619
meaning persistent pain, or functional issues

00:20:35.619 --> 00:20:39.359
like limping or weakness. OK. Or if there's significant

00:20:39.359 --> 00:20:41.599
migration of the trochanter fragment, typically

00:20:41.599 --> 00:20:44.180
defined as more than 2 centimeters displacement.

00:20:44.779 --> 00:20:47.539
And if the fracture is also associated with particle

00:20:47.539 --> 00:20:49.859
-induced osteolysis, which is that bone loss

00:20:49.859 --> 00:20:53.039
to -to -wear particles, the underlying osteolysis

00:20:53.039 --> 00:20:54.880
must also be addressed. Right, tackle the root

00:20:54.880 --> 00:20:57.839
cause. Exactly. Depending on the extent of bone

00:20:57.839 --> 00:21:00.220
loss and the stability of the main implant, this

00:21:00.220 --> 00:21:02.180
might range from a simple bearing surface exchange

00:21:02.180 --> 00:21:05.559
with bone grafting to a full acetabular and femoral

00:21:05.559 --> 00:21:08.970
stem revision. As for AL fractures affecting

00:21:08.970 --> 00:21:11.269
the lesser trochanter, these are usually treated

00:21:11.269 --> 00:21:14.170
non -operatively, similar to undisplaced AG fractures.

00:21:14.349 --> 00:21:17.269
Also non -op usually. Yes. The rationale here

00:21:17.269 --> 00:21:19.769
is that the lesser trochanter is often not critical

00:21:19.769 --> 00:21:22.809
for hip stability. Surgical intervention is typically

00:21:22.809 --> 00:21:25.210
only considered if the fracture is unusually

00:21:25.210 --> 00:21:27.789
large and extends into the calcar region of the

00:21:27.789 --> 00:21:30.130
femur, potentially compromising the stability

00:21:30.130 --> 00:21:33.839
of the main stem. In such rarer cases, circlage

00:21:33.839 --> 00:21:35.940
wiring, where wires are wrapped around the bone

00:21:35.940 --> 00:21:38.660
to provide compression with or without grafting,

00:21:38.880 --> 00:21:41.960
or even stem revision with diaphysial fixation,

00:21:42.180 --> 00:21:45.240
may be necessary. If an ale fracture occurs and

00:21:45.240 --> 00:21:47.500
is identified intraoperatively, which is common

00:21:47.500 --> 00:21:49.900
due to instrument placement, circlage wiring

00:21:49.900 --> 00:21:52.200
is usually advised immediately to prevent displacement,

00:21:52.539 --> 00:21:54.460
followed by a period of protected weight bearing

00:21:54.460 --> 00:21:57.660
post surgery. So, relatively less invasive approaches

00:21:57.660 --> 00:21:59.759
for type A fractures unless there are those specific,

00:21:59.799 --> 00:22:02.200
complicating factors. Now let's move to Vancouver

00:22:02.200 --> 00:22:04.259
type B fractures, which you noted are arguably

00:22:04.259 --> 00:22:06.079
the most challenging category and certainly the

00:22:06.079 --> 00:22:08.640
most prevalent. How do you approach these, starting

00:22:08.640 --> 00:22:11.220
with B1, where the prosthesis is stable but the

00:22:11.220 --> 00:22:14.420
bone around it is fractured? Yes. Type E fractures

00:22:14.420 --> 00:22:16.480
truly represent the bulk of the challenge. They

00:22:16.480 --> 00:22:19.259
account for the vast majority, with B1 at maybe

00:22:19.259 --> 00:22:23.519
29 % and B2 at 53 % in some large registries

00:22:23.519 --> 00:22:25.740
like the Swedish hip arthroplasty register. So

00:22:25.740 --> 00:22:28.400
B2 is the most common overall? It often appears

00:22:28.400 --> 00:22:31.460
to be yes. The difficulty often lies in accurately

00:22:31.460 --> 00:22:33.799
determining the prosthesis' stability and the

00:22:33.799 --> 00:22:37.000
bone stock quality, even interoperatively. For

00:22:37.000 --> 00:22:39.460
subtype B1 fractures, which occur around a stable

00:22:39.460 --> 00:22:42.299
prosthesis, the conventional approach is indeed

00:22:42.299 --> 00:22:45.759
open reduction and internal fixation, or RIF,

00:22:46.559 --> 00:22:48.680
primarily using extra medullary devices such

00:22:48.680 --> 00:22:50.819
as plates and circlage cables. Fixing it with

00:22:50.819 --> 00:22:52.980
plates and wires. That's the traditional idea.

00:22:53.210 --> 00:22:55.170
However, this approach comes with significant

00:22:55.170 --> 00:22:57.950
inherent challenges. These extramedulary implants

00:22:57.950 --> 00:23:00.910
were off -axis load -bearing devices. This means

00:23:00.910 --> 00:23:02.930
they are exposed to incredibly high -bending

00:23:02.930 --> 00:23:05.150
stresses, particularly when the patient begins

00:23:05.150 --> 00:23:07.109
weight -bearing. Ah, the physics work against

00:23:07.109 --> 00:23:10.069
you. They do. Combined with the typically slow

00:23:10.069 --> 00:23:12.950
bone healing process in elderly patients who

00:23:12.950 --> 00:23:16.150
often have osteoporotic bone, this can frequently

00:23:16.150 --> 00:23:18.349
lead to early fatigue failure of the plating

00:23:18.349 --> 00:23:21.420
system before bony union is achieved. The very

00:23:21.420 --> 00:23:24.779
nature of osteopenic or osteoporotic bone, coupled

00:23:24.779 --> 00:23:27.539
with the existing stiff implant or cement mantle,

00:23:28.119 --> 00:23:30.759
severely complicates screw anchoring and fixation.

00:23:31.319 --> 00:23:33.700
It substantially increases the risk of mechanical

00:23:33.700 --> 00:23:35.859
failure. The screws just don't hold well enough.

00:23:36.000 --> 00:23:38.460
Exactly. There's also the potential for the existing

00:23:38.460 --> 00:23:41.200
cement mantle to fracture during screw insertion

00:23:41.200 --> 00:23:43.539
and a negative impact on the already compromised

00:23:43.539 --> 00:23:46.299
intramedullary blood supply due to prior reaming

00:23:46.299 --> 00:23:49.819
or the exothermic reactions of cement. So, to

00:23:49.819 --> 00:23:51.599
address these issues, modern techniques often

00:23:51.599 --> 00:23:54.200
favor bridging locking plates. These plates act

00:23:54.200 --> 00:23:56.859
as strong extra medullary bridging splints, creating

00:23:56.859 --> 00:23:59.599
a fixed angle construct that is ideal for osteopenic

00:23:59.599 --> 00:24:01.740
bone. Locking plates. How do they help? Well,

00:24:01.880 --> 00:24:03.779
they are considered more biologically friendly

00:24:03.779 --> 00:24:05.519
because they don't rely on plate -to -cortex

00:24:05.519 --> 00:24:07.720
friction or precise screw thread purchase for

00:24:07.720 --> 00:24:10.400
stability. They lock into the plate, providing

00:24:10.400 --> 00:24:13.519
angular stability. This preserves the crucial

00:24:13.519 --> 00:24:16.769
periosteal blood supply. Contemporary plates

00:24:16.769 --> 00:24:19.930
feature anatomical designs, variable interlocking

00:24:19.930 --> 00:24:21.829
options that allow surgeons to navigate around

00:24:21.829 --> 00:24:24.769
the existing stem, extensions for trochanteric

00:24:24.769 --> 00:24:27.450
fragments, and multi -directional screw placement

00:24:27.450 --> 00:24:30.289
to target available healthier bone. These can

00:24:30.289 --> 00:24:32.490
often be applied using minimally invasive plate

00:24:32.490 --> 00:24:37.109
osteosynthesis or MIPO techniques. MIPO, so smaller

00:24:37.109 --> 00:24:39.450
incisions. Yes, further reducing soft tissue

00:24:39.450 --> 00:24:41.529
damage and preserving that vital blood supply.

00:24:41.720 --> 00:24:44.619
Studies consistently show excellent union rates

00:24:44.619 --> 00:24:47.619
and reduce complications with MIPO compared to

00:24:47.619 --> 00:24:50.740
traditional open approaches for B1s. Crucially

00:24:50.740 --> 00:24:53.240
though, surgical parameters must be meticulously

00:24:53.240 --> 00:24:56.140
observed. Plate working length. That's essentially

00:24:56.140 --> 00:24:58.299
how much of the plate bridges the fracture, should

00:24:58.299 --> 00:25:00.339
ideally be two to three times the width of the

00:25:00.339 --> 00:25:02.400
femur at the fracture level. Too short, and you

00:25:02.400 --> 00:25:05.519
concentrate stress. Too long, and you might unnecessarily

00:25:05.519 --> 00:25:07.619
stiffen the bone, risking a fracture at the plate

00:25:07.619 --> 00:25:11.829
ends. Similarly, plate span width for Combinated

00:25:11.829 --> 00:25:14.609
fractures dictates the length of the plate relative

00:25:14.609 --> 00:25:17.150
to the shattered bone segment, typically two

00:25:17.150 --> 00:25:19.670
to three times the fracture length. And critically,

00:25:20.049 --> 00:25:22.529
plate screw density, aiming for less than 0 .5,

00:25:22.890 --> 00:25:25.809
means strategically spacing your screws to distribute

00:25:25.809 --> 00:25:28.369
load evenly and prevent stress risers that could

00:25:28.369 --> 00:25:30.690
lead to early fatigue failure, especially in

00:25:30.690 --> 00:25:32.990
compromised bone, spreading the load precisely.

00:25:33.650 --> 00:25:35.890
While bicortical fixation is biomechanically

00:25:35.890 --> 00:25:38.750
superior, if not possible, a combination of circle

00:25:38.750 --> 00:25:41.009
-ish wires or cables for bending resistance,

00:25:41.470 --> 00:25:43.450
combined with unicortical locking screws for

00:25:43.450 --> 00:25:46.529
torsion and axial compression, can be used. And

00:25:46.529 --> 00:25:49.269
a key rationale today is to use long plates that

00:25:49.269 --> 00:25:51.670
span the whole femur. Sometimes even the entire

00:25:51.670 --> 00:25:54.109
diaphysis. Protecting the whole bone. Yes, to

00:25:54.109 --> 00:25:56.029
protect against future injuries, as these patients

00:25:56.029 --> 00:25:58.130
are unfortunately prone to subsequent falls and

00:25:58.130 --> 00:26:01.410
new stress risers. So, MIPO and advanced locking

00:26:01.410 --> 00:26:04.430
plates are truly changing the game for B1 fractures,

00:26:04.450 --> 00:26:06.849
allowing for more biologically friendly and robust

00:26:06.849 --> 00:26:10.109
fixation. But you mentioned a fascinating paradigm

00:26:10.109 --> 00:26:13.589
shift, even within B1, where revision might be

00:26:13.589 --> 00:26:16.509
preferred over fixation despite a stable prosthesis.

00:26:16.730 --> 00:26:19.029
That's truly counterintuitive. What's the biggest

00:26:19.029 --> 00:26:21.049
hurdle for surgery? margins in making that shift

00:26:21.049 --> 00:26:24.390
away from simply fixing a B1, and in what specific

00:26:24.390 --> 00:26:26.569
scenarios does this alternative approach become

00:26:26.569 --> 00:26:28.910
the superior choice? That's a really insightful

00:26:28.910 --> 00:26:30.950
question, and it gets to the heart of evolving

00:26:30.950 --> 00:26:33.849
surgical philosophy. The biggest hurdle is often

00:26:33.849 --> 00:26:36.750
the initial inclination to preserve an apparently

00:26:36.750 --> 00:26:40.029
stable, well -integrated femoral stem. You think,

00:26:40.109 --> 00:26:41.789
well, why dismantle something that appears to

00:26:41.789 --> 00:26:43.950
be working? Exactly. Seems like more surgery.

00:26:44.170 --> 00:26:46.670
It is more surgery initially. However, for some

00:26:46.670 --> 00:26:49.390
particularly challenging B1 fractures, revision

00:26:49.390 --> 00:26:51.990
arthroplasty with a long stem, essentially acting

00:26:51.990 --> 00:26:54.829
as an intramedullary splint, can genuinely be

00:26:54.829 --> 00:26:57.490
a more effective and durable strategy. This is

00:26:57.490 --> 00:27:00.089
especially true for short, oblique, or transverse

00:27:00.089 --> 00:27:02.890
B1 fractures located precisely at the stem tip,

00:27:03.190 --> 00:27:05.089
or very combinated fractures right there. Ah,

00:27:05.089 --> 00:27:07.190
the really awkward ones at the tip. Precisely.

00:27:07.490 --> 00:27:10.089
With an extramedullary plate alone, the construct

00:27:10.089 --> 00:27:13.740
remains an off -axis load -bearing system. Achieving

00:27:13.740 --> 00:27:15.799
optimal biomechanical strain at the fracture

00:27:15.799 --> 00:27:18.259
site, especially where stress transitions acutely

00:27:18.259 --> 00:27:20.980
from the very stiff proximal segment, which includes

00:27:20.980 --> 00:27:23.279
the well -fixed existing stem and the proximal

00:27:23.279 --> 00:27:25.660
part of the plate to the distal femoral fragment,

00:27:25.839 --> 00:27:28.680
can be exceedingly difficult. This often leads

00:27:28.680 --> 00:27:31.559
to delayed healing, non -union, or plate fatigue

00:27:31.559 --> 00:27:34.220
failure, requiring further surgery down the line.

00:27:34.819 --> 00:27:37.460
So the plate fix might fail eventually. It has

00:27:37.460 --> 00:27:39.880
a higher risk of failing in those specific scenarios.

00:27:40.319 --> 00:27:43.480
In these challenging B1 cases, the decision shifts

00:27:43.480 --> 00:27:46.339
towards a more pragmatic approach. While it means

00:27:46.339 --> 00:27:49.099
a greater initial surgical intervention by revising

00:27:49.099 --> 00:27:51.960
an otherwise stable femoral stem, this is often

00:27:51.960 --> 00:27:54.660
counterbalanced by the biomechanically advantageous

00:27:54.660 --> 00:27:57.700
in -axis load sharing provided by the new, longer

00:27:57.700 --> 00:28:00.359
femoral stem. This revised stem should extend

00:28:00.359 --> 00:28:02.759
well beyond the fracture by passing the fracture

00:28:02.759 --> 00:28:05.039
level by at least two cortical diameters, ideally

00:28:05.039 --> 00:28:07.900
more, to act as a strong internal splint. Using

00:28:07.900 --> 00:28:11.309
the new stem as the fixation. Exactly. Essentially

00:28:11.309 --> 00:28:13.869
for these challenging B1s, the decision shifts

00:28:13.869 --> 00:28:17.069
from a technically simpler fix to a patient -specific

00:28:17.069 --> 00:28:19.869
strategy that prioritizes overall long -term

00:28:19.869 --> 00:28:23.529
survival, earlier and safer mobilization, and

00:28:23.529 --> 00:28:26.430
a more uneventful post -operative course. It

00:28:26.430 --> 00:28:28.890
reduces the likelihood of repeat surgery. It's

00:28:28.890 --> 00:28:31.009
about looking beyond the immediate fracture and

00:28:31.009 --> 00:28:33.349
considering the entire biomechanical system and

00:28:33.349 --> 00:28:35.950
the patient's overall journey. That's a profound

00:28:35.950 --> 00:28:39.210
strategic shift. Now, if B1s can be this complex,

00:28:39.369 --> 00:28:41.369
what happens when you're dealing with an unstable

00:28:41.369 --> 00:28:44.890
prosthesis, as in subtype B2? But you still have

00:28:44.890 --> 00:28:47.289
decent bone stock. How does that shift the treatment

00:28:47.289 --> 00:28:49.549
paradigm? Right. For subtype B2 fractures, where

00:28:49.549 --> 00:28:51.410
the prosthesis is confirmed to be unstable, but

00:28:51.410 --> 00:28:52.930
the surrounding bone stock is still adequate,

00:28:53.430 --> 00:28:55.609
the consensus approach is generally a long -stem

00:28:55.609 --> 00:28:58.150
revision archroplasty. Revision is the main plan

00:28:58.150 --> 00:29:00.970
here. Yes, generally. This is often supplemented

00:29:00.970 --> 00:29:03.410
by additional plate fixation and or allograft

00:29:03.410 --> 00:29:05.509
strut fixation to help consolidate the fracture.

00:29:06.250 --> 00:29:09.369
Evidence strongly supports this. Systematic reviews

00:29:09.369 --> 00:29:11.769
and data from national registries, such as the

00:29:11.769 --> 00:29:14.569
SAR again, consistently show significantly higher

00:29:14.569 --> 00:29:17.329
re -operation rates for B2 fractures treated

00:29:17.329 --> 00:29:20.950
with RIF alone, around 32 % compared to a much

00:29:20.950 --> 00:29:23.730
lower 10 % for those treated with revision surgery.

00:29:23.839 --> 00:29:26.160
Big difference in re -operation rates. Huge.

00:29:26.559 --> 00:29:28.819
This is because fixing the fracture without addressing

00:29:28.819 --> 00:29:31.579
the underlying unstable implant is often doomed

00:29:31.579 --> 00:29:34.000
to failure. The loose stem will just continue

00:29:34.000 --> 00:29:36.519
to move and prevent healing. In these revision

00:29:36.519 --> 00:29:39.420
surgeries, the choice of stem is crucial. Long

00:29:39.420 --> 00:29:42.019
porous coated cementless stems or tapered fluted

00:29:42.019 --> 00:29:45.099
modular titanium known as TFMT stems are very

00:29:45.099 --> 00:29:47.299
commonly used due to their excellent discal fixation

00:29:47.299 --> 00:29:49.720
capabilities in the healthier bone further down.

00:29:49.940 --> 00:29:52.990
Getting fixation distally. Exactly. For very

00:29:52.990 --> 00:29:55.609
frail or unreliable patients, or those with more

00:29:55.609 --> 00:29:58.450
distal fracture extension and poorer bone stock

00:29:58.450 --> 00:30:01.470
distally, cemented stems can also be considered.

00:30:02.069 --> 00:30:04.089
They offer immediate stability for early weight

00:30:04.089 --> 00:30:05.809
bearing, which can be critical in that group.

00:30:06.549 --> 00:30:08.849
And as with B1 fractures requiring revision,

00:30:09.309 --> 00:30:11.710
the new stem should bypass the most distal fracture

00:30:11.710 --> 00:30:14.690
line by at least two cortical femoral diameters

00:30:14.690 --> 00:30:17.029
to provide sufficient stability and protection

00:30:17.029 --> 00:30:19.700
against refracture. Now there's an interesting

00:30:19.700 --> 00:30:22.480
and unique nuance for periprosthetic fractures

00:30:22.480 --> 00:30:25.250
that occur around cemented, polished tapered

00:30:25.250 --> 00:30:27.730
stems, which are common implants like the Exeter

00:30:27.730 --> 00:30:30.509
stem. Ah, the tapered ones. Yes. Due to their

00:30:30.509 --> 00:30:33.569
design principle, they are forth closed and rely

00:30:33.569 --> 00:30:35.609
on controlled subsidence into the cement mantle.

00:30:36.269 --> 00:30:38.789
These stems are, by their very nature, inherently

00:30:38.789 --> 00:30:40.890
unstable when a fracture occurs around them.

00:30:41.349 --> 00:30:43.549
So while revision with a new long stem is still

00:30:43.549 --> 00:30:46.450
considered the gold standard, or IFF alone can

00:30:46.450 --> 00:30:48.269
sometimes be a viable option if the fracture

00:30:48.269 --> 00:30:50.670
is reducible and the existing cement mantle is

00:30:50.670 --> 00:30:52.920
well fixed to the bone. So fixing the bone might

00:30:52.920 --> 00:30:55.140
be enough if the cement is solid? Potentially,

00:30:55.279 --> 00:30:57.720
in selected cases. This approach can be less

00:30:57.720 --> 00:31:00.059
demanding surgically, quicker, and potentially

00:31:00.059 --> 00:31:02.279
involve less blood loss, which can be advantageous

00:31:02.279 --> 00:31:05.019
for very sick or elderly patients. Some studies

00:31:05.019 --> 00:31:07.220
have shown good results with this ORIF alone

00:31:07.220 --> 00:31:09.759
approach in specific patient groups. However,

00:31:09.960 --> 00:31:11.599
it's critically important to acknowledge that

00:31:11.599 --> 00:31:13.400
other studies have reported higher non -union

00:31:13.400 --> 00:31:17.059
rates when ORIF is used for B2 fractures, especially

00:31:17.059 --> 00:31:19.440
if the underlying instability isn't fully accounted

00:31:19.440 --> 00:31:22.369
for. It's a calculated risk. And, as I mentioned

00:31:22.369 --> 00:31:24.789
earlier, for very frail, inoperable patients

00:31:24.789 --> 00:31:27.549
with minimally displaced B2 fractures, anabolic

00:31:27.549 --> 00:31:29.690
agents might even be considered for conservative

00:31:29.690 --> 00:31:32.109
management, particularly around these specific

00:31:32.109 --> 00:31:35.349
cemented stems. The key is truly individualized

00:31:35.349 --> 00:31:37.849
decision making based on the whole picture. So

00:31:37.849 --> 00:31:40.029
while revision arthroplasty is the undeniable

00:31:40.029 --> 00:31:43.130
gold standard for B2s, there are indeed specific,

00:31:43.430 --> 00:31:45.670
highly selected scenarios where ORF can be a

00:31:45.670 --> 00:31:48.809
viable, less invasive alternative. What happens

00:31:48.809 --> 00:31:51.349
then with subtype B3 fractures, where you're

00:31:51.349 --> 00:31:53.930
dealing with both an unstable prosthesis, and

00:31:53.930 --> 00:31:57.049
a severe, inadequate bone stock? This sounds

00:31:57.049 --> 00:31:59.009
incredibly challenging, almost like trying to

00:31:59.009 --> 00:32:01.269
build on sand. You've hit the nail on the head.

00:32:01.509 --> 00:32:04.289
Subtype B3 fractures are exceptionally challenging,

00:32:04.710 --> 00:32:07.250
precisely because of that combination. A loose

00:32:07.250 --> 00:32:10.710
prosthesis and massive bone deficiency. It is

00:32:10.710 --> 00:32:13.170
indeed often like building on crumbling ruins.

00:32:13.289 --> 00:32:16.150
A real reconstructive nightmare. It can be. The

00:32:16.150 --> 00:32:18.690
primary treatment options typically involve major

00:32:18.690 --> 00:32:21.450
femoral component revision, often requiring techniques

00:32:21.450 --> 00:32:24.150
like using a proximal femoral allograft that's

00:32:24.150 --> 00:32:26.650
cadaver bone. Right. Or even a proximal femoral

00:32:26.650 --> 00:32:28.529
replacement, where you replace the whole top

00:32:28.529 --> 00:32:31.279
end of the femur with metal. Impaction grafting,

00:32:31.640 --> 00:32:33.640
where a morselized bone graft is tightly packed

00:32:33.640 --> 00:32:36.240
into defects, can also be used effectively for

00:32:36.240 --> 00:32:38.920
large, contained bone defects, essentially rebuilding

00:32:38.920 --> 00:32:41.859
the foundation. Surgeons have an array of specialized

00:32:41.859 --> 00:32:44.619
implants available for these complex reconstructions.

00:32:45.119 --> 00:32:47.940
Fully portis -coated stems, tapered fluted stems,

00:32:48.559 --> 00:32:51.059
modular or monoblock designs, distally locking

00:32:51.059 --> 00:32:53.819
stems, and as I said, dedicated proximal femoral

00:32:53.819 --> 00:32:55.900
replacement prostheses. Lots of options, but

00:32:55.900 --> 00:32:59.190
complex ones. Very complex. The key here isn't

00:32:59.190 --> 00:33:01.789
just having these implants, but surgeon familiarity

00:33:01.789 --> 00:33:04.789
with the chosen system and the ability to apply

00:33:04.789 --> 00:33:07.049
a reproducible meticulous surgical technique,

00:33:07.569 --> 00:33:10.750
often refined over many years. Achieving adequate

00:33:10.750 --> 00:33:13.069
distal stem stability in the dysphysial bone

00:33:13.069 --> 00:33:15.269
is paramount. Sometimes it's the only healthy

00:33:15.269 --> 00:33:18.710
bone available for fixation. Meticulous preoperative

00:33:18.710 --> 00:33:21.329
templating along with careful intraoperative

00:33:21.329 --> 00:33:23.549
assessment of leg length and overall stability

00:33:23.549 --> 00:33:26.940
is crucial to prevent postoperative issues. It's

00:33:26.940 --> 00:33:29.259
also vital to preserve as much proximal metaphysical

00:33:29.259 --> 00:33:31.900
bone as possible, even if it's fractured, and

00:33:31.900 --> 00:33:33.980
to wrap the remaining femur with its soft tissue

00:33:33.980 --> 00:33:36.500
attachments around the new prosthesis. This provides

00:33:36.500 --> 00:33:39.119
biological stability and optimizes muscle function.

00:33:39.500 --> 00:33:41.599
Trying to solid everything you can. Absolutely.

00:33:42.299 --> 00:33:44.779
Allograft prosthetic composites, which combine

00:33:44.779 --> 00:33:47.099
a cadaveric bone segment and allograft with a

00:33:47.099 --> 00:33:49.839
new prosthesis, can be invaluable for massive

00:33:49.839 --> 00:33:53.140
bone loss. particularly in younger patients where

00:33:53.140 --> 00:33:55.200
long -term durability and bone stock restoration

00:33:55.200 --> 00:33:58.079
are priorities. These can be used with uncemented,

00:33:58.240 --> 00:34:00.740
cemented, or partially cemented techniques depending

00:34:00.740 --> 00:34:03.759
on the specific case. And finally, for older

00:34:03.759 --> 00:34:05.700
patients with severe bone efficiency or very

00:34:05.700 --> 00:34:08.440
poor prognosis, a proximal femoral replacement

00:34:08.440 --> 00:34:11.320
despite a relatively high complication rate and

00:34:11.320 --> 00:34:13.940
the sheer magnitude of the surgery can sometimes

00:34:13.940 --> 00:34:16.199
be the only viable option to get them mobilized.

00:34:16.519 --> 00:34:18.780
A last resort in some ways. In some ways, yes.

00:34:19.239 --> 00:34:22.150
These B3 cases They are often the ones that truly

00:34:22.150 --> 00:34:24.389
test a surgeon's mettle, not just technically,

00:34:24.710 --> 00:34:26.550
but in terms of resourcefulness and judgment.

00:34:27.190 --> 00:34:28.969
You have to be prepared for almost anything,

00:34:29.349 --> 00:34:30.650
knowing you might be trying to build a stable

00:34:30.650 --> 00:34:32.789
foundation on what often feels like crumbling

00:34:32.789 --> 00:34:35.869
ruins. It's clear that B3s demand an extraordinary

00:34:35.869 --> 00:34:37.929
level of reconstructive surgery and planning.

00:34:38.490 --> 00:34:41.090
Now, moving away from the area immediately around

00:34:41.090 --> 00:34:43.969
the stem, what about Vancouver type C fractures,

00:34:44.150 --> 00:34:46.750
which occur well below the implant tip? How do

00:34:46.750 --> 00:34:49.210
these differ in their management strategy? Right.

00:34:49.309 --> 00:34:51.630
Vancouver type C fractures are distinct because

00:34:51.630 --> 00:34:54.530
they are located in the distal third of the femur,

00:34:54.849 --> 00:34:57.710
well below the femoral stem. Typically more than

00:34:57.710 --> 00:35:00.349
two to three times the femoral diameter discol

00:35:00.349 --> 00:35:03.269
to the implant tip. Critically, these fractures

00:35:03.269 --> 00:35:06.570
do not compromise the stability of the hip prosthesis

00:35:06.570 --> 00:35:08.869
itself, which remains well fixed proximally.

00:35:09.230 --> 00:35:12.469
So the hip joint part is okay? Exactly. Therefore,

00:35:12.730 --> 00:35:14.510
the primary treatment involves open reduction

00:35:14.510 --> 00:35:17.469
and internal fixation using standard osteosynthesis

00:35:17.469 --> 00:35:20.590
techniques. Mostly bridge plating or, less commonly,

00:35:21.070 --> 00:35:23.260
retrograde nailing from the knee end. The key

00:35:23.260 --> 00:35:25.480
principle here is that while the hip prosthesis

00:35:25.480 --> 00:35:27.980
itself is stable, its presence in the proximal

00:35:27.980 --> 00:35:30.519
femur must be accounted for to minimize the risk

00:35:30.519 --> 00:35:33.039
of secondary fractures or stress risers forming

00:35:33.039 --> 00:35:35.320
between the hip stem and the new fixation distalate.

00:35:35.400 --> 00:35:38.159
Ah, avoiding a weak spot in the middle. Precisely.

00:35:38.780 --> 00:35:41.039
Even if a short plate might appear biomechanically

00:35:41.039 --> 00:35:43.820
adequate for the immediate fracture, the contemporary

00:35:43.820 --> 00:35:46.480
consensus born out of experience is to protect

00:35:46.480 --> 00:35:49.280
the entire diaphysis by overlapping the femoral

00:35:49.280 --> 00:35:52.199
component proximally. Anchoring proximally with

00:35:52.199 --> 00:35:54.420
crooklish cables or screws around or past the

00:35:54.420 --> 00:35:56.880
tip of the stem, this approach ensures a better

00:35:56.880 --> 00:35:59.159
balance of the construct's working length, plate

00:35:59.159 --> 00:36:02.400
span width, and crew ratio, distributing stresses

00:36:02.400 --> 00:36:05.320
more evenly across the bone. More importantly,

00:36:05.460 --> 00:36:07.360
it provides crucial protection against future

00:36:07.360 --> 00:36:10.059
injuries. You're thinking ahead again. Yes, as

00:36:10.059 --> 00:36:12.159
these patients are highly susceptible to subsequent

00:36:12.159 --> 00:36:14.239
falls that could easily lead to new fractures

00:36:14.239 --> 00:36:16.579
if parts of the diaphysis are left unprotected,

00:36:16.820 --> 00:36:18.880
creating a new stress riser at the end of a short

00:36:18.880 --> 00:36:21.960
plate. Therefore, most surgeons now prefer to

00:36:21.960 --> 00:36:24.199
span the whole femur with a long retrograde locking

00:36:24.199 --> 00:36:26.960
plate, ensuring maximum fixation at the distal

00:36:26.960 --> 00:36:29.500
metaphysis and a combination of screws and cables

00:36:29.500 --> 00:36:31.869
proximally. This is about preventing the next

00:36:31.869 --> 00:36:33.829
fracture, not just fixing the current one. So

00:36:33.829 --> 00:36:36.710
we've taken a deep dive into femoral periprosthetic

00:36:36.710 --> 00:36:39.389
fractures, which are undoubtedly the most common

00:36:39.389 --> 00:36:42.210
and challenging. But what about those equally

00:36:42.210 --> 00:36:45.369
demanding, albeit less frequent, fractures involving

00:36:45.369 --> 00:36:48.429
multiple implants, known as interprosthetic femoral

00:36:48.429 --> 00:36:51.190
fractures, or those affecting the acetabulum?

00:36:51.519 --> 00:36:53.980
Let's start with interprosthetic femoral fractures.

00:36:54.159 --> 00:36:57.380
Right. Interprosthetic femoral fractures or IFFs.

00:36:57.539 --> 00:36:59.300
These are defined as fractures occurring between

00:36:59.300 --> 00:37:02.159
an ipsilateral hip and knee implant. So a hip

00:37:02.159 --> 00:37:04.159
replacement and a knee replacement on the same

00:37:04.159 --> 00:37:06.780
leg. Exactly. And the fracture happens in the

00:37:06.780 --> 00:37:09.699
femur shaft between those two prostheses. While

00:37:09.699 --> 00:37:12.280
still relatively uncommon, they represent a growing

00:37:12.280 --> 00:37:15.000
challenge in our practice. They account for about

00:37:15.000 --> 00:37:18.099
5 % to 7 % of all paraprosthetic femoral fractures,

00:37:18.179 --> 00:37:20.539
and their incidence will certainly rise as more

00:37:20.539 --> 00:37:22.619
patients receive both implants. That makes sense.

00:37:22.960 --> 00:37:25.579
Classification is absolutely key here to guide

00:37:25.579 --> 00:37:28.619
treatment. Pyres et al.'s 2014 classification

00:37:28.619 --> 00:37:31.539
is considered the most comprehensive. It strategically

00:37:31.539 --> 00:37:35.059
divides IFFs into three major categories based

00:37:35.059 --> 00:37:37.579
on the fracture location, the stability of both

00:37:37.579 --> 00:37:40.059
the hip and knee implants, and importantly, whether

00:37:40.059 --> 00:37:42.659
there's a stemmed knee femoral component, as

00:37:42.659 --> 00:37:45.079
this significantly impacts reconstructive options.

00:37:45.960 --> 00:37:48.159
This system then provides a guiding treatment

00:37:48.159 --> 00:37:50.699
algorithm based on these variables. So it considers

00:37:50.699 --> 00:37:53.989
both ends? Precisely. For management, if both

00:37:53.989 --> 00:37:56.730
the hip and knee implants are stable, then fracture

00:37:56.730 --> 00:37:58.849
fixation is the primary approach, with locking

00:37:58.849 --> 00:38:01.130
plates being the implant of choice due to their

00:38:01.130 --> 00:38:04.150
versatility and fixed angle stability. However,

00:38:04.489 --> 00:38:06.929
if either the hip or knee implant or both are

00:38:06.929 --> 00:38:09.670
unstable, then revision arthroplasty of the unstable

00:38:09.670 --> 00:38:12.150
component is necessary, often supplemented by

00:38:12.150 --> 00:38:14.309
internal fixation to stabilize the fracture itself.

00:38:14.510 --> 00:38:16.659
Right, address the loose bit first. You have

00:38:16.659 --> 00:38:20.019
to. For complex or severe cases, especially those

00:38:20.019 --> 00:38:23.019
with significant comminution or bone loss, various

00:38:23.019 --> 00:38:25.420
composite constructs, including intramedullary

00:38:25.420 --> 00:38:27.539
options where a rod is placed inside the bone

00:38:27.539 --> 00:38:30.440
and strike grafting, can provide both intra -

00:38:30.440 --> 00:38:33.530
and extramedullary stability. A critical surgical

00:38:33.530 --> 00:38:35.750
principle, regardless of the chosen strategy,

00:38:36.170 --> 00:38:38.969
is to bypass the fracture adequately, avoid creating

00:38:38.969 --> 00:38:41.489
new stress risers at the ends of implants, and

00:38:41.489 --> 00:38:43.809
ideally span the entire femur between the two

00:38:43.809 --> 00:38:46.590
prostheses, or at least overlap the prosthesis

00:38:46.590 --> 00:38:49.010
by at least two cortical diameters beyond the

00:38:49.010 --> 00:38:51.730
fracture. In the most severe cases, particularly

00:38:51.730 --> 00:38:53.909
certain pyres types, especially with poor bone

00:38:53.909 --> 00:38:56.369
stock, options can include advanced arthroplasty

00:38:56.369 --> 00:38:59.170
with adjuvant fixation or even total femur replacement.

00:38:59.369 --> 00:39:01.750
That's a truly massive reconstructive procedure.

00:39:01.829 --> 00:39:03.849
Releasing the whole thigh bone. Essentially,

00:39:04.050 --> 00:39:07.250
yes. The outcomes for IFFs can be quite challenging,

00:39:07.730 --> 00:39:09.909
reflecting the complexity of these injuries and

00:39:09.909 --> 00:39:12.610
the often frail patient population. Reported

00:39:12.610 --> 00:39:15.329
non -union rates are around 8%, with mortality

00:39:15.329 --> 00:39:18.489
rates around 6 .5 % and revision rates for failure

00:39:18.489 --> 00:39:21.690
at about 10 .7%. However, it's worth noting that

00:39:21.690 --> 00:39:24.269
some studies, such as Bonviale et al.'s series,

00:39:24.670 --> 00:39:26.510
have reported significantly higher mortality

00:39:26.510 --> 00:39:30.210
rates, up to 31%, and revision rates of 24%.

00:39:30.210 --> 00:39:33.510
31 % mortality? That's very high. It is sobering.

00:39:33.579 --> 00:39:35.579
These statistics truly underscore the fragile

00:39:35.579 --> 00:39:38.000
nature of this patient cohort and the absolute

00:39:38.000 --> 00:39:40.480
necessity for meticulous planning and execution

00:39:40.480 --> 00:39:43.440
to avoid catastrophic failures. Those mortality

00:39:43.440 --> 00:39:45.900
rates are indeed sobering, highlighting the severe

00:39:45.900 --> 00:39:48.719
challenge these fractures pose. Now, turning

00:39:48.719 --> 00:39:50.599
our attention to the acetabulum at the socket

00:39:50.599 --> 00:39:53.659
side, periprosthetic acetabular fractures are

00:39:53.659 --> 00:39:56.760
less common, but I imagine equally, if not more,

00:39:57.079 --> 00:39:59.440
severe and challenging to treat. What are the

00:39:59.440 --> 00:40:01.699
unique aspects of these injuries? Absolutely.

00:40:02.530 --> 00:40:05.010
Periprostatic acetabular fractures, while less

00:40:05.010 --> 00:40:07.329
common than the femoral ones, present profound

00:40:07.329 --> 00:40:09.849
challenges to the surgeon. Their incidence is

00:40:09.849 --> 00:40:12.250
also expected to rise with the increasing numbers

00:40:12.250 --> 00:40:14.869
of elderly and more active individuals undergoing

00:40:14.869 --> 00:40:18.550
THA. These fractures can occur either intraoperatively,

00:40:18.750 --> 00:40:22.250
during the primary or revision surgery, or postoperatively.

00:40:23.190 --> 00:40:25.730
Intraoperatively, they are most frequently associated

00:40:25.730 --> 00:40:28.929
with uncemented press fit elliptical cups. The

00:40:28.929 --> 00:40:31.389
uncemented cups again? Yes, where the force of

00:40:31.389 --> 00:40:33.590
insertion can cause micro -fractures or larger

00:40:33.590 --> 00:40:35.829
breaks. They're also more common during revision

00:40:35.829 --> 00:40:39.170
THRs than primary ones, often due to a combination

00:40:39.170 --> 00:40:42.329
of patient factors like severe osteoporosis and

00:40:42.329 --> 00:40:44.389
surgeon -related technical challenges in working

00:40:44.389 --> 00:40:46.929
with altered anatomy or removing old components.

00:40:47.550 --> 00:40:49.210
Post -operatively, they can result from high

00:40:49.210 --> 00:40:52.469
-energy trauma or more commonly from severe bone

00:40:52.469 --> 00:40:55.389
loss due to underlying conditions like osteoporosis,

00:40:55.710 --> 00:40:58.309
aseptic loosening of the implant, osteolysis,

00:40:58.650 --> 00:41:00.469
pelvic discontinuity we will discuss in a moment,

00:41:00.570 --> 00:41:03.230
malignancy or infection. So similar underlying

00:41:03.230 --> 00:41:05.710
causes to femoral fracture sometimes. Similar

00:41:05.710 --> 00:41:08.070
risk factors, yes, but manifesting in the pelvis.

00:41:08.730 --> 00:41:11.409
For classification, the Proprosky system is commonly

00:41:11.409 --> 00:41:14.190
used, describing various types based on the extent

00:41:14.190 --> 00:41:16.630
and location of bone loss and fracture patterns.

00:41:17.389 --> 00:41:20.190
Pascarella et al. have also presented a comprehensive

00:41:20.190 --> 00:41:22.590
system that guides surgical planning based on

00:41:22.590 --> 00:41:25.150
the timing of diagnosis, the stability of the

00:41:25.150 --> 00:41:28.369
acetabular prosthesis, and the pre -injury arthroplasty

00:41:28.369 --> 00:41:31.329
state. Diagnosis requires a highly comprehensive

00:41:31.329 --> 00:41:34.190
approach to identify and precisely classify the

00:41:34.190 --> 00:41:36.949
fracture and, crucially, determine the stability

00:41:36.949 --> 00:41:39.750
of the implant. Interoperative fluoroscopy can

00:41:39.750 --> 00:41:42.030
be immensely useful to confirm reduction and

00:41:42.030 --> 00:41:45.329
fixation during surgery. Postoperatively, patients

00:41:45.329 --> 00:41:47.550
typically present with significant pain, loss

00:41:47.550 --> 00:41:50.150
of function, reduced range of motion, inability

00:41:50.150 --> 00:41:52.429
to weight -bear, or a leg -length discrepancy.

00:41:52.570 --> 00:41:55.250
In acute traumatic injuries, there's even a potential

00:41:55.250 --> 00:41:57.789
for life -threatening hemorrhage due to the rich

00:41:57.789 --> 00:42:00.010
vascularity of the pelvis. Bleeding is a major

00:42:00.010 --> 00:42:03.110
risk there. A very significant risk. Imaging

00:42:03.110 --> 00:42:06.329
includes plane radiographs, standard AP pelvis,

00:42:07.130 --> 00:42:08.989
Judith views, which highlight specific pelvic

00:42:08.989 --> 00:42:12.289
columns, and inlet -outlet views and CT scans

00:42:12.289 --> 00:42:15.010
with 3D reconstruction. These are essential to

00:42:15.010 --> 00:42:16.750
provide detailed information on the fracture

00:42:16.750 --> 00:42:19.530
pattern, the extent of bone loss, and the relationship

00:42:19.530 --> 00:42:22.269
of the implant to the bone. In cases of severe

00:42:22.269 --> 00:42:24.869
displacement, CT and geography may even be recommended

00:42:24.869 --> 00:42:27.710
to rule out potential vascular injuries. So once

00:42:27.710 --> 00:42:29.610
diagnosed, what are the core treatment principles

00:42:29.610 --> 00:42:32.030
for these acetabular fractures? Especially given

00:42:32.030 --> 00:42:33.949
the complexities of bone stock and component

00:42:33.949 --> 00:42:35.869
stability, it sounds like a delicate balance

00:42:35.869 --> 00:42:38.710
between fixation and revision. That's precisely

00:42:38.710 --> 00:42:41.760
the challenge. The fundamental treatment principles

00:42:41.760 --> 00:42:44.820
for perprostetic acetabular fractures revolve

00:42:44.820 --> 00:42:47.420
around achieving a stable acetabulum that can

00:42:47.420 --> 00:42:49.780
adequately support the component, preventing

00:42:49.780 --> 00:42:52.000
any micromotion at the implant bone interface.

00:42:52.960 --> 00:42:55.300
This almost always necessitates adequate bone

00:42:55.300 --> 00:42:58.280
stock with or without additional augmentation

00:42:58.280 --> 00:43:01.159
to ensure secure implantation and long -term

00:43:01.159 --> 00:43:05.320
stability. For intraoperatively identified fractures,

00:43:05.559 --> 00:43:08.219
If they are undisplaced and the cup is stable,

00:43:08.619 --> 00:43:10.980
they can sometimes be left in situ with standard

00:43:10.980 --> 00:43:14.309
rehabilitation. But supplemented screw fixation

00:43:14.309 --> 00:43:16.210
of the cup is generally recommended to provide

00:43:16.210 --> 00:43:18.789
additional stability and reduce the risk of secondary

00:43:18.789 --> 00:43:21.289
displacement. Add a few screws for safety. Usually

00:43:21.289 --> 00:43:24.030
a good idea. If the cup is unstable and there's

00:43:24.030 --> 00:43:26.289
fracture displacement, the meticulous open reduction

00:43:26.289 --> 00:43:28.489
and posterior column plating followed by the

00:43:28.489 --> 00:43:31.349
insertion of a revision cup is advised. For missed

00:43:31.349 --> 00:43:33.769
intraoperative fractures, which can happen, close

00:43:33.769 --> 00:43:35.909
follow -up with serial radiographs is critical

00:43:35.909 --> 00:43:38.190
to monitor for any delayed displacement or cup

00:43:38.190 --> 00:43:40.349
migration, which would then necessitate revision

00:43:40.349 --> 00:43:42.579
surgery. Keep a close eye on them. Definitely.

00:43:42.900 --> 00:43:45.780
For postoperative fractures, acute traumatic

00:43:45.780 --> 00:43:49.340
undisplaced fractures with a stable cup may initially

00:43:49.340 --> 00:43:51.860
be treated conservatively with protected weight

00:43:51.860 --> 00:43:55.340
bearing and gentle mobilization. However, close

00:43:55.340 --> 00:43:57.880
follow -up with serial radiographs is mandatory

00:43:57.880 --> 00:44:00.659
due to the insidious risk of secondary loosening

00:44:00.659 --> 00:44:03.219
even if the fracture appears to heal. So even

00:44:03.219 --> 00:44:05.800
if it looks okay initially? It can loosen later.

00:44:06.300 --> 00:44:09.059
If that occurs, revision surgery over consolidated

00:44:09.059 --> 00:44:11.610
bone may be needed. However, if the fracture

00:44:11.610 --> 00:44:14.389
fails to heal, or if there's an unstable fracture

00:44:14.389 --> 00:44:17.010
pattern with an unstable component, then prompt

00:44:17.010 --> 00:44:20.250
ORF, most often posterior column fixation combined

00:44:20.250 --> 00:44:22.889
with revision surgery, is unequivocally required.

00:44:23.349 --> 00:44:25.510
And what about pelvic discontinuity, which sounds

00:44:25.510 --> 00:44:27.510
particularly severe. Can you elaborate on what

00:44:27.510 --> 00:44:30.280
that is and how it's approached? Pelvic discontinuity,

00:44:30.440 --> 00:44:33.059
or PD, is indeed a particularly challenging condition.

00:44:33.599 --> 00:44:35.659
Imagine the acetabulum, the socket of the hip

00:44:35.659 --> 00:44:37.679
joint, actually detaching or splitting from the

00:44:37.679 --> 00:44:39.800
rest of the pelvis, essentially losing its structural

00:44:39.800 --> 00:44:41.940
integrity in both the anterior and posterior

00:44:41.940 --> 00:44:44.559
columns. The whole socket breaks away. Effectively,

00:44:44.599 --> 00:44:47.199
yes. It's a catastrophic failure of the bone

00:44:47.199 --> 00:44:50.179
that normally supports the hip cup, making reconstruction

00:44:50.179 --> 00:44:52.960
incredibly complex because you're trying to reestablish

00:44:52.960 --> 00:44:55.840
a stable ring from what is now two separate fragments.

00:44:56.239 --> 00:44:59.059
Treatment for PD is highly individualized, factoring

00:44:59.059 --> 00:45:01.619
in bone quality and quantity, the soft tissue

00:45:01.619 --> 00:45:03.840
environment, and the patient's overall health

00:45:03.840 --> 00:45:07.000
and functional demands. Rogers et al. proposed

00:45:07.000 --> 00:45:09.400
a useful algorithm distinguishing between acute

00:45:09.400 --> 00:45:13.019
and chronic discontinuity. Acute, mobile discontinuities

00:45:13.019 --> 00:45:15.800
are typically treated with RAF and revision surgery,

00:45:16.199 --> 00:45:18.679
aiming to anatomically reduce and fix the fracture

00:45:18.679 --> 00:45:21.360
while simultaneously revising the unstable cup.

00:45:22.110 --> 00:45:24.469
Chronic, more rigid discontinuities where the

00:45:24.469 --> 00:45:26.650
fragments have healed in a malunited or non -united

00:45:26.650 --> 00:45:29.349
position often require a more extensive approach,

00:45:29.409 --> 00:45:32.309
commonly a cupcage reconstruction. What's that?

00:45:32.489 --> 00:45:34.489
It's essentially a mel construct, often made

00:45:34.489 --> 00:45:37.050
of titanium, that bridges the gap between the

00:45:37.050 --> 00:45:39.530
separated pelvic fragments and provides a stable

00:45:39.530 --> 00:45:42.659
platform to cement or fix a new cup into. It

00:45:42.659 --> 00:45:45.579
bypasses the deficient bone. Other options for

00:45:45.579 --> 00:45:47.579
managing pelvic discontinuity include the use

00:45:47.579 --> 00:45:50.300
of robust column plates to bridge the defect,

00:45:50.980 --> 00:45:53.420
structural grafting to fill bone voids, anti

00:45:53.420 --> 00:45:55.659
-pertrusio cages to prevent the cup from migrating

00:45:55.659 --> 00:45:58.559
inwards into the pelvis, or jumbo cups, often

00:45:58.559 --> 00:46:01.000
combined with porous trabecular metal augments,

00:46:01.619 --> 00:46:03.760
particularly for cases with good healing potential

00:46:03.760 --> 00:46:07.199
and minor bone loss. For chronic cases with little

00:46:07.199 --> 00:46:10.340
inherent support and poor of vascular bone, distraction

00:46:10.340 --> 00:46:12.760
techniques like a cupcage are often invaluable.

00:46:13.300 --> 00:46:15.159
They literally bridge the gap, allowing bone

00:46:15.159 --> 00:46:17.079
to potentially heal around them and create a

00:46:17.079 --> 00:46:20.400
new stable bridge. In situations of truly massive

00:46:20.400 --> 00:46:23.139
bone loss, a triflange component, which is a

00:46:23.139 --> 00:46:25.340
custom -made implant based on the patient's CT

00:46:25.340 --> 00:46:28.559
scan, is typically required. It essentially rebuilds

00:46:28.559 --> 00:46:30.860
the complex pelvic anatomy with metal flanges

00:46:30.860 --> 00:46:36.079
that fix the remaining healthy bone. Extremely

00:46:36.079 --> 00:46:39.219
complex. Other techniques might include impaction

00:46:39.219 --> 00:46:42.360
grafting, non -cemented hemispherical reconstruction,

00:46:43.320 --> 00:46:45.860
structural allografts though largely superseded

00:46:45.860 --> 00:46:49.039
by porous metal augments, now oblong cups, or

00:46:49.039 --> 00:46:52.099
other cages like Gans and Virtschneider or the

00:46:52.099 --> 00:46:55.079
Kerbal Tanaka Plate. The key is selecting the

00:46:55.079 --> 00:46:57.159
technique that best reestablishes the structural

00:46:57.159 --> 00:47:00.079
integrity of the acetabulum and allows for secure

00:47:00.079 --> 00:47:03.739
long -term cup fixation. We've covered a remarkable

00:47:03.739 --> 00:47:05.820
amount of ground on the clinical management and

00:47:05.820 --> 00:47:08.280
the sheer technical complexity. So what does

00:47:08.280 --> 00:47:10.480
this all mean for the patient in the long run?

00:47:10.940 --> 00:47:12.659
Given these complexities, what are the typical

00:47:12.659 --> 00:47:15.179
outcomes? And crucially, what are we doing as

00:47:15.179 --> 00:47:17.199
a field to prevent these fractures in the first

00:47:17.199 --> 00:47:19.800
place? And what does the future hold for orthopedic

00:47:19.800 --> 00:47:22.639
practice in this area? Right, the overall outcomes

00:47:22.639 --> 00:47:24.960
and complications for periprosthetic hip fractures

00:47:24.960 --> 00:47:26.920
really highlight their significant impact on

00:47:26.920 --> 00:47:29.800
patients' lives. In the acute phase, these fractures

00:47:29.800 --> 00:47:32.320
carry a mortality risk comparable to that of

00:47:32.320 --> 00:47:34.440
native neck of femur fractures in the elderly.

00:47:34.719 --> 00:47:37.400
Same mortality as a standard hip fracture. Initially,

00:47:37.500 --> 00:47:40.340
yes, which is a stark comparison. We see a one

00:47:40.340 --> 00:47:43.239
-year mortality rate reported at around 9 .7%.

00:47:43.239 --> 00:47:45.519
This risk does seem to decrease significantly

00:47:45.519 --> 00:47:48.159
after the initial six months post -surgery, which

00:47:48.159 --> 00:47:50.780
suggests that critical early period is key. The

00:47:50.780 --> 00:47:52.960
overall 30 -day complication rate is notably

00:47:52.960 --> 00:47:56.860
high at 45%, with a concerning 22 % being major

00:47:56.860 --> 00:48:00.039
complications and 13 % minor, and a 30 -day mortality

00:48:00.039 --> 00:48:03.300
rate of 10%. 10 % mortality in 30 days. Yes.

00:48:03.820 --> 00:48:05.719
It's critical to note that significant risk factors

00:48:05.719 --> 00:48:07.739
for these adverse outcomes include a patient's

00:48:07.739 --> 00:48:10.780
abbreviated mental test score, or AMTS, of 8

00:48:10.780 --> 00:48:12.980
out of 10 or less, indicating some level of cognitive

00:48:12.980 --> 00:48:15.340
impairment and a delay to surgery of more than

00:48:15.340 --> 00:48:17.780
72 hours. So cognition and timing matter hugely.

00:48:18.159 --> 00:48:21.119
Absolutely. This underscores the need for rapid

00:48:21.119 --> 00:48:23.980
assessment and intervention, as well as comprehensive

00:48:23.980 --> 00:48:27.119
geriatric co -management. Functional and radiological

00:48:27.119 --> 00:48:29.760
outcome data are somewhat limited, largely due

00:48:29.760 --> 00:48:32.019
to the wide diversity of fracture types, the

00:48:32.019 --> 00:48:34.480
varied treatment approaches, and the high morbidity

00:48:34.480 --> 00:48:36.239
and mortality rates inherent in this patient

00:48:36.239 --> 00:48:38.579
population, not to mention characteristics like

00:48:38.579 --> 00:48:41.699
those low AMTS scores. However, studies generally

00:48:41.699 --> 00:48:43.780
indicate that patients undergoing revision for

00:48:43.780 --> 00:48:46.460
periprosthetic fractures tend to have worse functional

00:48:46.460 --> 00:48:48.940
outcomes compared to those revised simply for

00:48:48.940 --> 00:48:51.900
aseptic THA loosening. Worse function than a

00:48:51.900 --> 00:48:54.480
standard revision? Generally, yes. Functional

00:48:54.480 --> 00:48:56.699
impairment is common, with studies showing around

00:48:56.699 --> 00:48:59.980
41 .9 % of patients may not return to their pre

00:48:59.980 --> 00:49:02.619
-injury walking status. That's a truly significant

00:49:02.619 --> 00:49:05.940
impact on their quality of life. The most unfavorable

00:49:05.940 --> 00:49:08.380
prognosis in terms of both survival and functional

00:49:08.380 --> 00:49:11.280
return is typically seen after a B3 fracture,

00:49:11.800 --> 00:49:14.059
given the extent of bone loss and surgical complexity

00:49:14.059 --> 00:49:16.699
involved. As for arthroplasty longevity after

00:49:16.699 --> 00:49:19.699
these revisions, long -term data are rather sparse

00:49:19.699 --> 00:49:21.940
due to the high mortality and restricted follow

00:49:21.940 --> 00:49:24.139
-up in this frail cohort. Though short - to mid

00:49:24.139 --> 00:49:26.079
-term studies generally report high union rates

00:49:26.079 --> 00:49:28.659
in stable implants, we need more long -term data.

00:49:29.070 --> 00:49:32.070
Beyond the immediate outcomes, infection is always

00:49:32.070 --> 00:49:34.289
a major concern in orthopedic surgery, and I

00:49:34.289 --> 00:49:37.269
imagine paraprosthetic joint infection, or PJI,

00:49:37.570 --> 00:49:40.250
is a critical and potentially devastating complication

00:49:40.250 --> 00:49:43.010
here. What's the situation with PJIs in this

00:49:43.010 --> 00:49:46.320
context? PGI is indeed a critical complication,

00:49:46.519 --> 00:49:48.460
and its incidence is unfortunately rising in

00:49:48.460 --> 00:49:50.559
parallel with the increasing number of arthroplasty

00:49:50.559 --> 00:49:52.920
procedures globally. This leads to significant

00:49:52.920 --> 00:49:55.300
morbidity and mortality, and the cost of treatment

00:49:55.300 --> 00:49:57.400
is truly substantial, particularly in regions

00:49:57.400 --> 00:49:59.780
with limited health insurance access. It's a

00:49:59.780 --> 00:50:02.800
huge burden. A massive burden. Effective management

00:50:02.800 --> 00:50:04.980
demands a high level of teamwork, involving a

00:50:04.980 --> 00:50:07.440
dedicated multidisciplinary team. That includes

00:50:07.440 --> 00:50:10.559
microbiologists, histobiologists, pathophysiologists,

00:50:11.099 --> 00:50:13.519
working alongside orthopedic surgeons, often

00:50:13.519 --> 00:50:16.619
guided by clear radiological imaging and comprehensive

00:50:16.619 --> 00:50:20.119
laboratory results. Diagnosis relies on a combination

00:50:20.119 --> 00:50:23.679
of strong clinical evidence and, crucially, identifying

00:50:23.679 --> 00:50:26.559
the causative organism. Preoperative testing

00:50:26.559 --> 00:50:28.960
typically includes hematological markers such

00:50:28.960 --> 00:50:32.380
as ESR and CRP, advanced imaging like x -rays,

00:50:32.619 --> 00:50:35.760
maybe PD scans, and synovial fluid analysis looking

00:50:35.760 --> 00:50:38.239
at cell counts, leukocyte esterase, and most

00:50:38.239 --> 00:50:41.460
importantly, cultures. However, intraoperative

00:50:41.460 --> 00:50:43.639
tissue samples, taken from multiple sites within

00:50:43.639 --> 00:50:45.820
the joint during surgery, are vital for definitive

00:50:45.820 --> 00:50:48.360
diagnosis and identifying the specific pathogen.

00:50:48.960 --> 00:50:51.340
Newer methods such as PCR are also becoming more

00:50:51.340 --> 00:50:53.300
available, offering quicker and potentially more

00:50:53.300 --> 00:50:55.599
sensitive detection. Getting the right bug is

00:50:55.599 --> 00:50:58.440
key. Absolutely essential for targeted treatment.

00:50:59.199 --> 00:51:02.420
The treatment algorithm for PJI is complex. For

00:51:02.420 --> 00:51:04.920
acute infections occurring soon after surgery,

00:51:05.360 --> 00:51:07.699
debridement, antibiotics and implant retention,

00:51:07.980 --> 00:51:11.739
or DARE, is often considered. However, for infections

00:51:11.739 --> 00:51:14.280
older than three weeks, where biofilms have likely

00:51:14.280 --> 00:51:16.920
established on the implant surface, a multi -stage

00:51:16.920 --> 00:51:20.000
approach, often guided by algorithms like Zimmerle's,

00:51:20.280 --> 00:51:22.369
may be necessary. Biofilms make it much harder.

00:51:22.590 --> 00:51:25.530
Much harder. In some severe intractable cases,

00:51:26.010 --> 00:51:28.670
a salvage operation like arthrodesis, fusion

00:51:28.670 --> 00:51:31.130
of the joint, or even amputation might be the

00:51:31.130 --> 00:51:33.489
only option left. The most common choice among

00:51:33.489 --> 00:51:35.449
surgeons, and generally considered the gold standard

00:51:35.449 --> 00:51:38.610
for chronic PGI, is a two -stage exchange. Two

00:51:38.610 --> 00:51:40.869
stages? How does that work? The first stage involves

00:51:40.869 --> 00:51:43.230
complete removal of the implant, thorough debridement

00:51:43.230 --> 00:51:45.969
of all infected and devitalized tissue, and temporary

00:51:45.969 --> 00:51:48.230
installation of an antibiotic -impregnated cement

00:51:48.230 --> 00:51:51.389
spacer into the joint space. A spacer with antibiotics.

00:51:51.909 --> 00:51:54.969
Yes, delivering high local concentrations. After

00:51:54.969 --> 00:51:57.469
an interim waiting period, typically two to six

00:51:57.469 --> 00:52:00.349
weeks or even longer, allowing systemic antibiotics

00:52:00.349 --> 00:52:03.070
to take effect and infection markers to normalize.

00:52:03.750 --> 00:52:06.590
The second stage involves implanting a new prosthesis

00:52:06.590 --> 00:52:09.130
and taking further tissue biopsies to confirm

00:52:09.130 --> 00:52:12.050
infection eradication. Patients usually receive

00:52:12.050 --> 00:52:14.309
a prolonged course of oral antibiotics, often

00:52:14.309 --> 00:52:17.210
for six weeks or more, following the second stage.

00:52:17.789 --> 00:52:19.730
It's also important to consider special patient

00:52:19.730 --> 00:52:22.190
conditions, like immunosuppression or cognitive

00:52:22.190 --> 00:52:25.050
decline, and country -specific challenges, such

00:52:25.050 --> 00:52:27.349
as delayed presentation due to financial constraints

00:52:27.349 --> 00:52:30.170
or limited access to certain antibiotics in developing

00:52:30.170 --> 00:52:32.889
nations, all of which complicate effective management.

00:52:33.469 --> 00:52:35.730
That's a comprehensive yet daunting approach

00:52:35.730 --> 00:52:38.190
to managing a potentially devastating complication.

00:52:38.400 --> 00:52:40.980
Given all these challenges, what proactive prevention

00:52:40.980 --> 00:52:43.500
strategies are being implemented? And what does

00:52:43.500 --> 00:52:45.920
the future hold for this field? Prevention is

00:52:45.920 --> 00:52:48.380
absolutely crucial for patients' success and

00:52:48.380 --> 00:52:50.440
to mitigate the rising burden of these fractures.

00:52:50.679 --> 00:52:53.280
It starts long before surgery and continues long

00:52:53.280 --> 00:52:55.760
after. Patient education, for instance, isn't

00:52:55.760 --> 00:52:58.219
just handing them a leaflet. It's a deep dive

00:52:58.219 --> 00:53:01.500
into realistic expectations, the absolute necessity

00:53:01.500 --> 00:53:03.840
of compliance with rehabilitation protocols,

00:53:03.840 --> 00:53:06.820
and a clear understanding of their physical limitations

00:53:06.820 --> 00:53:09.989
and risks. We often involve physical therapists

00:53:09.989 --> 00:53:12.789
in preoperative counseling to design personalized

00:53:12.789 --> 00:53:15.269
home exercise programs, emphasizing not just

00:53:15.269 --> 00:53:17.789
strength, but balance and proprioception to prevent

00:53:17.789 --> 00:53:19.929
falls. Preventing the falls in the first place.

00:53:20.309 --> 00:53:22.269
Exactly. And it's not just about what they do

00:53:22.269 --> 00:53:24.730
after surgery. It's about optimizing their overall

00:53:24.730 --> 00:53:27.570
bone health, now ensuring adequate calcium and

00:53:27.570 --> 00:53:30.369
vitamin D intake, maybe even considering anti

00:53:30.369 --> 00:53:32.550
osteoporotic medications like bisphosphonates

00:53:32.550 --> 00:53:35.400
or teraparitide, if indicated. We also stress

00:53:35.400 --> 00:53:37.699
environmental modifications, simple but critical

00:53:37.699 --> 00:53:40.760
things like securing rugs, improving home lighting,

00:53:41.019 --> 00:53:43.440
installing grab bars and bathrooms. It's a holistic

00:53:43.440 --> 00:53:45.639
approach to fall prevention, recognizing that

00:53:45.639 --> 00:53:48.059
one bad fall can undo all the surgical success.

00:53:48.360 --> 00:53:50.320
Simple things can make a big difference. They

00:53:50.320 --> 00:53:53.500
really can. Preoperative assessments are also

00:53:53.500 --> 00:53:56.349
essential to identify high -risk patients. those

00:53:56.349 --> 00:53:59.489
with atypical anatomy, significant fixed deformities,

00:53:59.869 --> 00:54:01.989
or leg length discrepancies allowing us to tailor

00:54:01.989 --> 00:54:04.789
prophylactic measures or choose specific implant

00:54:04.789 --> 00:54:07.929
designs to minimize risk. During surgery, meticulous

00:54:07.929 --> 00:54:10.369
implant positioning and fixation, maintaining

00:54:10.369 --> 00:54:12.809
an impeccably sterile environment, and early

00:54:12.809 --> 00:54:15.429
controlled mobilization are key to reducing post

00:54:15.429 --> 00:54:18.280
-operative complications. Looking to the future,

00:54:18.480 --> 00:54:20.639
the evolution of orthopedic implants continues

00:54:20.639 --> 00:54:23.360
at a rapid pace, providing more surgical options.

00:54:23.860 --> 00:54:26.079
However, there's a clear and ongoing need for

00:54:26.079 --> 00:54:28.139
even more specially designed implants that can

00:54:28.139 --> 00:54:30.719
better address the vast majority of paraprosthetic

00:54:30.719 --> 00:54:33.300
fractures, particularly those with complex geometry

00:54:33.300 --> 00:54:35.840
and significant bone loss. Better tools for the

00:54:35.840 --> 00:54:38.860
job. Exactly. New concepts in fracture fixation.

00:54:39.070 --> 00:54:41.809
such as plates with far cortical locking, which

00:54:41.809 --> 00:54:44.190
offer unique biomechanical advantages by engaging

00:54:44.190 --> 00:54:47.269
the opposite cortex. And active plating, where

00:54:47.269 --> 00:54:49.210
the plate itself provides dynamic compression,

00:54:49.590 --> 00:54:52.230
are emerging. These will require robust clinical

00:54:52.230 --> 00:54:54.550
evidence and long -term studies to thoroughly

00:54:54.550 --> 00:54:57.789
evaluate their outcomes in practice. The significant

00:54:57.789 --> 00:55:00.070
remaining challenge is the limited robust data

00:55:00.070 --> 00:55:02.949
on long -term functional outcomes and implant

00:55:02.949 --> 00:55:06.230
longevity following revision surgery for periprosthetic

00:55:06.230 --> 00:55:09.360
fractures. This is critical, especially as their

00:55:09.360 --> 00:55:12.860
incidence is projected to continue rising. Interprosthetic

00:55:12.860 --> 00:55:15.739
and periprosthetic acetabular fractures, while

00:55:15.739 --> 00:55:18.440
currently less common, represent growing challenges

00:55:18.440 --> 00:55:20.840
that demand further dedicated research and evidence

00:55:20.840 --> 00:55:23.300
-based guidelines. Ultimately, the substantial

00:55:23.300 --> 00:55:25.239
financial burden these complex injuries place

00:55:25.239 --> 00:55:27.559
on healthcare systems globally highlights an

00:55:27.559 --> 00:55:29.460
ongoing and pressing need for more effective,

00:55:29.659 --> 00:55:32.199
predictable solutions. and perhaps a potential

00:55:32.199 --> 00:55:34.579
move towards specialized regional centers to

00:55:34.579 --> 00:55:36.699
provide optimal cost -effective care for these

00:55:36.699 --> 00:55:39.460
highly complex cases. So, what does this all

00:55:39.460 --> 00:55:42.519
mean for us as medical professionals? The management

00:55:42.519 --> 00:55:44.639
of paraprosthetic hip fractures remains one of

00:55:44.639 --> 00:55:47.280
the most complex and critical areas in orthopedic

00:55:47.280 --> 00:55:50.480
surgery today. It's abundantly clear that successful

00:55:50.480 --> 00:55:53.380
outcomes hinge on a deeply individualized approach.

00:55:53.679 --> 00:55:56.219
One that seamlessly combines highly advanced

00:55:56.219 --> 00:55:58.780
surgical skills with comprehensive patient assessment,

00:55:59.400 --> 00:56:02.159
rigorous risk stratification, and meticulous

00:56:02.159 --> 00:56:05.300
post -operative care. As the number of total

00:56:05.300 --> 00:56:07.460
hip arthroplasties continues to rise globally,

00:56:07.739 --> 00:56:09.960
so too will the incidence of these challenging

00:56:09.960 --> 00:56:12.480
fractures, meaning this will remain a focal point

00:56:12.480 --> 00:56:15.699
for decades to come. The ongoing need for innovation

00:56:15.699 --> 00:56:18.420
in implant design, refined surgical techniques,

00:56:18.599 --> 00:56:21.079
and robust long -term data for our decision -making

00:56:21.079 --> 00:56:24.159
simply cannot be overstated. If you found this

00:56:24.159 --> 00:56:26.380
deep dive valuable, please do take a moment to

00:56:26.380 --> 00:56:27.960
rate and share this deep dive with a colleague

00:56:27.960 --> 00:56:30.599
who might benefit. Join us next time on the deep

00:56:30.599 --> 00:56:32.719
dive as we continue to explore the cutting edge

00:56:32.719 --> 00:56:34.960
of medical knowledge. This raises an important

00:56:34.960 --> 00:56:36.659
overarching question for all of us in the field,

00:56:36.679 --> 00:56:39.260
doesn't it? How can we further collaborate across

00:56:39.260 --> 00:56:41.639
disciplines and national borders to standardize

00:56:41.639 --> 00:56:44.639
best practices, share learnings, reduce complications,

00:56:44.960 --> 00:56:47.460
and ultimately improve not just survival, but

00:56:47.460 --> 00:56:49.820
the meaningful quality of life for this increasingly

00:56:49.820 --> 00:56:53.510
frail and complex patient population? The journey

00:56:53.510 --> 00:56:55.610
of mastering paraprosthetic fracture management

00:56:55.610 --> 00:56:58.369
is an ongoing one, a continuous learning curve

00:56:58.369 --> 00:56:58.989
for us all.