Torn Anterior Cruciate Ligament
(Torn ACL or ACL Injury)
Torn Anterior Cruciate Ligament (Torn ACL) Facts
- The anterior cruciate ligament (ACL) is one of four ligaments that help
stabilize the knee. It is the most commonly injured knee ligament.
- ACL injury usually occurs when the knee is hyperextended (straightened) and
a pivot occurs simultaneously. The
injury may occur with or without contact.
- Women have an increased risk of ACL injury because of differences in
anatomy, muscle mass, and training.
- Symptoms of ACL tear include hearing a loud pop as the ligament tears,
pain, knee swelling, and difficulty
- Diagnosis is made clinically by physical examination and usually confirmed
- Surgery and rehabilitation is the most commonly suggested treatment, though
in patients who are sedentary or do little sports activity, a nonoperative
approach is a possibility.
- Postoperative rehabilitation may take six to nine months to return to full
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