ACL Injuries
Learn the common causes and treatments of ACL injuries.
What Is an ACL Injury?
The anterior cruciate ligament (ACL) provides stability to the knee and supports you while you play sports, grocery shop, or take a walk. Injuries to this ligament are common and can be the result of pivoting quickly, landing awkwardly, or stopping suddenly.1 Common symptoms of an ACL tear include pain, swelling, trouble moving your knee as you used to, and putting weight on it. You may also hear a pop or feel a popping sensation in your knee.1
Minor ACL injuries may be treated without surgery, but if you have an ACL tear, you will most likely need surgery. ACL repair, a procedure that preserves and reattaches the torn ligament, might be the right option for you. If your ligament cannot be repaired, a minimally invasive ACL reconstruction will likely be necessary.
Tear Location Matters
Not all ACL tears can be repaired. Tear location plays a big role in determining ACL tear treatment, which includes reconstruction or repair. Other factors that determine if an ACL can be repaired include the quality of the remaining tissue, when the injury occurred, patient age, and activity level.
Tears Close to the Bone
When ACL tears occur close to the thigh bone (femur), it's been shown that patients have positive results with ACL repair.5 A recent study found that these tears, which make up 16% of all ACL tears, are likely repairable.6
Tears Farther Away From the Bone
About 27% of ACL tears occur a little farther from the bone and may be repairable.6
Tears in the Middle of the ACL
Approximately 50% of ACL tears occur in the middle of the ligament and are likely not repairable.6