Interactive Transcript
0:01
Let's look at the high and low
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ankle with the toe pointed at
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1.5T in the coronal projection.
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We start out more in the back.
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There's the posterior tib fib ligament.
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Some of the syndesmosis above it, which is
0:18
variably perforated for vessels and nerves.
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Now let's work our way forward
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to the anterior tib fib ligament.
0:28
That is more ill defined, because
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the foot is in plantar flexion.
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So it shows up as some wispy, gray
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structures between the tibia and the fibula.
0:40
Let's do something a little bit more easy.
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Let's go back to the back of the ankle,
0:44
and show you the two major bundles of the
0:48
posterior talofibular ligament, inserting
0:51
on the fibula with a fairly
0:54
broad footprint.
0:57
That structure almost never tears.
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It's very powerful and really only
1:01
ruptures in ankle dislocations.
1:04
We're not going to show you the crural ligaments,
1:06
which are not well seen with the foot implant
1:08
or flexion, but we are going to show you this
1:10
ligament, the calcaneal fibular ligament, which is
1:15
optimally seen with the foot implant or flexion.
1:19
So let's move forward a little bit.
1:22
Let's move to the front.
1:23
Not all the way to the front.
1:24
Look where we are on the fibula.
1:27
This ligament that we're going
1:28
to show you goes from proximal,
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superolateral, to posterior inferomedial.
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So in other words, it's going to go
1:39
from the fibula and go backwards.
1:42
Let's go backwards, sorry.
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Backwards.
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There it is.
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Now it's triangular.
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Let's keep going backwards.
1:49
Now, it almost looks like a tendon.
1:52
It's lining up with the peroneus brevis,
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but it is not the peroneus brevis.
1:57
It is the spreading out of the insertion
2:01
of the calcaneal fibular ligament.
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There it is, there it is,
2:05
there it is, there it is, there it is,
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inserting on the back of the calcaneus.
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That is the lateral collateral ligament anatomy
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in the coronal projection with the toe pointed.
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