A healthy knee or hip joint contains an oily substance called synovial fluid. One important ingredient of synovial fluid is hyaluronic acid, a natural substance that lubricates the joint. With age, however, the synovial fluid tends to lose some of its elasticity, resulting in pain as its lubricating and cushioning effects are lost.
Viscosupplementation is the use of hyaluronic acid to supplement the synovial fluid, restoring elasticity of the fluid in the joint. A relatively new form of arthritis treatment, hyaluronic acid therapy is often used when other conservative treatment methods have failed and use of corticosteroids would like to be put off.
Jackson Orthopaedic Foundation participated in two key studies of the effectiveness of both specific Viscosupplementation materials—The Ovation Study— and general outcomes of Viscosupplementation proceedures—The Move Study