Knee replacement surgery is performed by an orthopedic surgeon. An orthopedic surgeon is an expert in the treatment of problems related to the musculoskeletal system, according to Remedy's Health Communities.
An orthopedic surgeon performs knee replacement surgery by first making an incision in the front of the knee, then removing the part of the knee joint that is damaged. Next, the surfaces are shaped so that an artificial joint can be held onto them. Then, cement or other materials are used to attach an artificial joint to the knee cap, shin and thigh bone. The new artificial joint is then supported by the surrounding ligaments and muscles.