The ACL, or anterior cruciate ligament, is one of the major ligaments in your knee, connecting the lower back part of your thigh bone to the upper front part of your shinbone. Thanks to its location, the ACL holds your shin in place and provides rotational stability to your knee.
One of the most common knee injuries is an ACL tear, which can occur from:
Many ACL injuries occur alongside damage to the meniscus, articular cartilage, and other ligaments in the knee. Depending on the severity of your ACL injury and how active you typically are, it may be necessary to undergo surgery to restore the full functions of your knee.