The patella (better known as the kneecap) is a flat, triangular-shaped bone that protects the knee joint and helps muscles move your leg more efficiently. A healthy patella glides up and down a groove at the end of your femur. However, there are a number of conditions that can cause pain when your patella moves. In this procedure, the surgeon inserts a scope into a small incision in the knee and cleans damaged cartilage using a special instrument.
View damaged patellar cartilage removal animation