Anterolateral rotatory instability

Anterolateral rotatory instability is an excessive internal rotation of the tibia on the femur when the knee is bent, leading to excessive opening of the joint at the outer (lateral ) side.

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2015 - Posteromedial Corner of the Knee: The Neglected Corner

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CLINICAL PUBLICATIONS

The Anterolateral Ligament is Not the Whole Story: Reconsidering the Form and Function of the Anterolateral Knee and its Contribution to Rotatory Knee Instability. Sheean AJ, Shin J, Patel NK, Lian J, Guenther D and Musahl V. Tech Orthop. 2018 Dec; 33(4): 219–224.

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The test for anterolateral rotatory instability is also called the 'Slocum Test'. Here is a video showing the Slocum test and embedded courtesy of 'HDAllDay21' -