Inflammation of the blood vessels. Vasculitis can occur by
itself or can be a feature of a rheumatic disease, such as
rheumatoid arthritis or lupus. The individual bones that are
stacked one on top of another to form the spinal column.
Products injected into osteoarthritis joints to replace the
natural hyaluronic acid that usually gives joint fluid its
viscosity. This process is known as viscosupplementation.
Viscosupplements are currently approved only for OA of the knee,
but are being tested on other joints.