ACL stands for Anterior Cruciate Ligament. In our knee joint there is the ACL and the PCL. PCL is the Posterior Cruciate Ligament. The ACL provides almost ninety percent of our stability of the knee joint. These two ligaments cross the center of the knee. They control the backward and forward motion of the knee. The ACL is the more frequent of the two ligaments to be injured due to excessive forward motion of the knee as well as inward twisting or rotation of the knee. Most of these injuries happen during athletic activity. Reconstruction of the ACL is a common procedures. ACL tears occur in 60 per 100,000 people per year. Surgery to repair this ligament is highly successful. Patients who have the surgery have a 90-95% chance for a full recovery, enabling them to return to normal activity. Since muscles control the movement of the knee joint, rehabilitation of these muscles following the injury and/or surgery is most important.
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