Injuries to the Anterior Cruciate Ligament (ACL) are common in sports like basketball, soccer and skiing. Strains to this ligament are often treated without surgery with a course of physical therapy designed to improve strength and allow proper healing of the strain. If a patient suffers an ACL tear, he or she will often come to physical therapy pre-operatively for “PRE-hab” to reduce swelling and improve range of motion. A few visits of physical therapy before surgery help the patients to be optimally ready to tolerate the procedure and recover more quickly. Following repair of a torn ACL, patients often work with physical therapists for a few months to recover their ability to participate in their active lifestyles.