Be sure that they are board Licensed in orthopedic medical procedures and they did a fellowship in joint replacement surgery. This differs from a total knee replacement, where bone and cartilage from the whole joint are replaced. The best cure for that signs of osteoarthritis of your knee is weight-loss. http://knee cap replacement https://www.theorthopaedicandpainpractice.com/knee-cap-replacement-understanding-the-basics-of-this-orthopaedic-surgery/