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Arthroplasty is a surgical procedure to restore the integrity and function of a joint. A joint can be restored by resurfacing the bones. An artificial joint (called a prosthesis) may also be used.
Various types of arthritis may affect the joints. Osteoarthritis, or degenerative joint disease, is a loss of the cartilage or cushion in a joint, and is the most common reason for arthroplasty.