ACL injury (Anterior Cruciate Ligament injury)

An ACL injury involves damage to the anterior cruciate ligament, a key ligament that stabilizes the knee joint by controlling rotational and forward movement of the tibia (shinbone) relative to the femur (thighbone). It commonly occurs during sudden stops, turns, or direct impacts, especially in sports. Symptoms often include a loud "pop," swelling, instability, and difficulty bearing weight. Treatment may involve physical therapy or surgery, depending on the severity. Preventative measures, like proper training and conditioning, can reduce the risk of injury. An ACL tear can significantly affect activity and may require a recovery period before returning to sports.