Medial Collateral Ligament (MCL) Summary
HIDEInteractive Transcript
0:00
Knee anatomy. MCL summary.
0:03
You might have watched vignette one
0:05
on layer one and vignette two on layers two and three.
0:08
Now, let's put it all together in the axial projection.
0:12
Anteriorly, fused are layers number one and two.
0:19
Deep to this is layer number three, which is
0:21
made up mostly of the menisco patellar
0:24
ligament and some retinacular fibers from
0:27
the medial peripatellar retinaculum.
0:30
Let's follow the fused layers, one and two, which consist of deep fascia, retinaculum,
0:37
and the medial patellofemoral ligament, and
0:40
this was split. The superficial portion
0:44
forms layer number one, the anterior and superficial fascia around
0:49
the sartorius and covers multiple muscles around the back.
0:54
The deeper split forms the middle layer,
0:58
the superficial portion of the MCL,
1:01
a synonym for the middle layer or layer number two.
1:07
Layer number two will eventually fuse around back with layer number three.
1:13
Layer number three in the mid-coronal
1:15
projection or mid-coronal plane, is formed by capsular condensation.
1:22
It's also formed by the menisco-femoral,
1:25
and the meniscotibial or coronary ligament.
1:28
The deep capsular layer, layer number three, will fuse with layer number two at
1:34
this corner to form the triangular-shaped
1:38
obliquely oriented POL or posterior oblique ligament of the knee.
1:43
As we keep coming around back,
1:45
the deep layer then converts into the oblique popliteal ligament, or OPL.
1:53
So OPL, POL, capsule, anteromedial layer number three
2:01
made up of the menisco patellar ligament
2:04
and some retinacular fibers.
2:06
And then layers number two, the tibial
2:09
collateral ligament, as you used to call it the superficial MCL,
2:14
layer number two, and anteriorly layer number two,
2:18
the MPFL fuses with the superficial tissue, the deep fascia and the medial
2:24
retinaculum, to form a combined layer one and two.
Stephen J Pomeranz, MD
Chief Medical Officer, ProScan Imaging. Founder, MRI Online
ProScan Imaging
© 2024 MRI Online. All Rights Reserved.