Anterolateral ligament

Anterolateral Ligament The Anterolateral Ligament (ALL) is a ligament located in the knee, specifically on the outer part of the knee joint. It was first described in 1879 by the French surgeon Paul Segond, but its existence and importance have been the subject of debate and research in the medical community for many years.

Anatomy

The ALL is a thin, oblique ligament that runs from the lateral epicondyle of the femur to the anterolateral aspect of the tibial plateau. It is located just anterior to the fibular collateral ligament (FCL) and the popliteus tendon. The ALL is intracapsular but extrasynovial, meaning it is inside the joint capsule but outside the synovial membrane.

Function

The primary function of the ALL is to provide rotational stability to the knee. It works in conjunction with the anterior cruciate ligament (ACL) to prevent anterior tibial translation and internal tibial rotation.

Clinical Significance

Injury to the ALL is often associated with ACL injuries. Studies have shown that an intact ALL can help reduce the risk of ACL graft failure after reconstruction. Therefore, understanding the anatomy and function of the ALL is crucial in the diagnosis and treatment of knee injuries.

See Also

• Knee
• Ligament
• Anterior cruciate ligament
• Fibular collateral ligament

External Links

• The Anterolateral Ligament: Anatomy, Length Changes and Association with the Segond Fracture

Anterolateral ligament Resources
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