Joint replacement is an operation to replace the rough surface of an arthritis or damaged joint with a new surface, to enable the person to return to a painless active life style. A joint replacement is needed in individuals who suffer from painful.Arthritic joints with or without deformity, secondary to rheumatoid arthritis, osteoarthritis, traumatic arthritis and certain other forms of nonseptic arthritis. The procedure is done for hip, knee, elbow, shoulder and finger.