DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Osteoarthritis. X-ray of the elbow of a 69-year- old woman with osteoarthritis. The elbow is where the upper-arm bone (humerus, upper frame) meets the two bones of the forearm: the ulna (left) and the radius (right). Normally, the bones are separated by friction-reducing cartilage. Here, however, the cartilage has been worn away, causing the joint space to become narrowed. This makes the joint stiff and painful. Osteoarthritis is a common joint disease that affects many people over the age of 60. More women than men suffer from severe osteoarthritis. Symptoms can be relieved with painkilling and anti-inflammatory drugs, and physiotherapy, although surgery may be necessary.
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