Superficial MCL and ACL in Anteromedial Rotatory Stability

Anteromedial rotatory knee instability is poorly understood about the anterior cruciate ligament (ACL) and medial knee components. A study examined how structures control knee laxity and instability. Researchers used robotic testing on cadaveric knees to find that the superficial medial collateral ligament (MCL) prevented valgus and external rotation. Internal rotation and anterior tibial translation were inhibited by the superficial MCL’s posterior oblique ligament and anterior fibers. These findings emphasize the need for personalized medical reconstruction for various medical injuries and instabilities.

Image courtesy of interviewee. December 6, 2023

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