How Well Does Cartilage Repair Surgery Work for Knee Injuries

This research follows people who are having autologous chondrocyte implantation (ACI)—a surgery where doctors take cartilage-forming cells from your knee, grow more of them in a lab, and put them back to repair damaged cartilage. The study wants to measure exactly how well this treatment restores your knee's movement, strength, and ability to walk and stay active after surgery.

While doctors know that ACI surgery helps many patients feel better, they don't have clear measurements of how much it actually improves the knee's mechanical function and real-world activities like walking and exercising. This information is crucial, especially for working-age people who want to return to an active lifestyle.