<unk>  (literally "re-forming of joint") is an orthopedic surgical procedure where the articular surface of a musculoskeletal joint is replaced, remodeled, or realigned by osteotomy or some other procedure. It is an elective procedure that is done to relieve pain and restore function to the joint after damage by arthritis or some other type of trauma.
Arthroplasty
Arthrodesis
Ankle replacement
Facetectomy
Knee replacement
Finger joint replacement
Hip resurfacing
Joint replacement