The patella (knee cap) is a flat, rectangular bone that protects the knee joint and helps the leg move more efficiently. A healthy patella glides up and down a groove at the head of your femur. There are a number of conditions that can cause pain when the patella moves. Your surgeon will determine which treatment is right for you, based on your specific condition.
The video below will give you a general overview of the procedure to remove damaged cartilage that is causing patella pain.
Your own surgery may vary depending on the extent of the damage and the judgment of your surgeon.