Long-term outcomes of revision ACL surgery using donor tendon

This is a research study looking at the long-term results of a specific surgical technique for patients who need a second anterior cruciate ligament (ACL) reconstruction — the surgery that repairs a torn ACL in the knee. The surgeons use a donor Achilles tendon (a tissue graft from a donor) rather than taking tissue from your own body. The study wants to understand how well this approach works years after surgery and whether it helps prevent arthritis in the knee.

When an ACL reconstruction fails or doesn't heal properly, patients need revision surgery — a second procedure to fix the knee. Doctors want to know which surgical techniques and types of grafts give the best long-term results and cause the least arthritis damage, so they can make better choices for future patients.