  Minimally Invasive Total Hip Arthroplasty  Total hip arthroplasty is the complete replacement of a damaged hip with a prosthetic one. This surgery is performed to relieve pain and restore function to a hip deteriorated by osteoarthritis, rheumatoid or psoriatic arthritis, avascular necrosis, congenital abnormalities or traumatic injury. Total hip arthroplasty involves replacing the entire diseased joint, composed of the natural ball and socket and its protective cartilage. The damaged joint is replaced with a prosthetic hip, usually made of a metal ball and a plastic socket. ...  Joint Reconstruction and Replacement  Because joints are in constant use, they often wear out over time due to overuse or aging. Joint reconstruction or replacement may be required to relieve the resulting pain and restore function. Most joints in the body, including the neck, shoulders, elbows, wrists, hands, hips, knees, ankles and feet, are synovial, permitting movement and articulation. When these joints suffer traumatic injury, or when the cartilage that normally protects them wears away, surgical repair or replacement may be necessary. ...  