The ACL is a dynamic structure whose main function is to provide primary restraint to anterior tibial subluxation. It provides secondary restraint limiting internal rotation and restraint with the knee in full extension. Along with the posterior crutiate ligament, it provides the axis for knee rotation and links rotation with flexion and extension.
The ligament is primarily made up of two bands, the anteromedial and posterolateral, and an intermediate band sometimes present. The ACL runs from the posteromedial portion of the lateral femoral condyle in an inferior, anterior, and medial orientation to an area just lateral to the medial tibial eminence. The posterolateral band is tightest when the knee is in extension, and the anteromedial band is tightest with the knee in flexion.
The majority of ACL injuries suffered during athletic participation are of the noncontact variety. Three main noncontact mechanisms have been identified planting and cutting, straight-knee landing and one-step stop landing with the knee hyperextended. Pivoting and sudden deceleration are also common mechanisms of noncontact ACL injury. Basketball, soccer, and volleyball consistently produce some of the highest ACL injury rates across various age groups. Other activities with a high rate of injury are gymnastics, martial arts, and running. In most sports, injuries occur... [continues]
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(1999, 10). Women Sport Athlete Injuries. StudyMode.com. Retrieved 10, 1999, from http://www.studymode.com/essays/Women-Sport-Athlete-Injuries-10357.html
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