The anterolateral ligament runs from lateral epicondyle of the femur to the anterolateral aspect of the proximal tibia. However the origin has also been reported to be located on the lateral femoral condyle.
The ligament is estimated to be present in 97-100% of all people.
The anterolateral ligament is thought to function as a stabilizer for internal rotation of the knee.
The “pivot shift” phenomenon in ACL injury patients may be ascribed to additional trauma to the ALL. The ACL (anterior cruciate ligament) is a major ligament of the human knee. Also, theSegond fracture is probably a bony avulsion of the anterolateral ligament.
The existence of a ligamentous structure between the lateral femur and tibia was first described by Paul Segond in 1879. Various reports describing a structure resembling the anterolateral ligament have been reported since. A full anatomical description was provided by Steven Claes and Johan Bellemans in 2013.