= osteoarthrosis; n.
a degenerative disease of joints resulting from wear of the articular cartilage, which may lead to secondary changes in the underlying bone. It can be primary or it can occur secondarily to abnormal load to the joint or damage to the cartilage from inflammation or trauma. The joints are painful and stiff with restricted movement. Osteoarthritis is recognized on X-ray by narrowing of the joint space (due to loss of cartilage) and the presence of osteophytes, osteosclerosis, and cysts in the bone. The condition is treated with analgesics, by reducing the load to the joint by weight loss or the use of a walking stick, or surgically by osteotomy, arthrodesis, or arthroplasty.

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