Abstract
The effects on articular cartilage of continuous and intermittent excessive pressures have been studied in the knees of rabbits. Severe degenerative changes in the cartilage were observed; these resembled the typical lesions seen in osteoarthritis in man. They included fibrillation of cartilage, death of chondrocytes, eburnation of joint surfaces, sclerosis of bone and the production of "bone cysts." Regeneration of cartilage was common and it was brought about either by the deeply situated chondrocytes which had escaped death or by metaplasia of young connective tissue cells of the bone marrow.
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