Avascular necrosis, also called osteonecrosis is a condition in which bone death occurs because of inadequate blood supply to it. Lack of blood flow may occur when there is a fracture in the bone or a joint dislocation that may damage nearby blood vessels.
AVN is caused from insufficient blood supply to the bone. There are several causes of avascular necrosis. However no specific cause is found. The common causes of avascular necrosis include:
Trauma: Dislocation or bone fractures can injure blood vessels
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