What's New in Osteoarthritis?

Osteoarthritis (OA) is the most common type of arthritis affecting up to 27 million Americans.  In OA, cartilage that lines the joints breaks down.  With loss of this natural cushion, the bones begin to rub together, damaging the joint. Symptoms of osteoarthritis include pain, swelling and reduced range of motion.  OA can develop in any joint in the body, but the most common ones affected are the