Two medical device products, Hyalgan and Synvisc, are preparations that mimic a naturally occurring body substance that lubricates the knee joint called hyaluronic acid. The products, which were approved by the FDA for the treatment of OA of the knee, are injected directly into the knee joint to help provide temporary relief of pain and flexible joint movement.
Another device used in arthritis treatment is transcutaneous electrical nerve stimulation (TENS), which has been found effective in modifying pain perception. TENS blocks pain messages to the brain by directing mild electric pulses to nerve endings that lie beneath the painful area of the skin.
A blood-filtering device called the Prosorba Column is used in some cases for filtering out harmful antibodies in people with severe rheumatoid arthritis.
Heat and cold can both be used to reduce the pain and inflammation of arthritis. Patients and their doctors can determine which one works best.
