Osteonecrosis of the humeral head is a condition where a portion of the bone of the humeral head (the top of the humerus or upper arm bone) loses its blood supply, dies and collapses. Another term used for osteonecrosis is avascular necrosis. The term avascular means that a loss of blood supply to the area is the cause of the problem and necrosis means death.This condition has been reported in all age groups but seems more common between the ages of 20 and 50. Men are affected by osteonecrosis of the shoulder twice as often as women but women with osteonecrosis from an autoimmune disease (e.g. lupus) develop this condition more often than men with the same disease.This guide will help you understand
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Avascular necrosis of shoulder
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