Definition of Avascular necrosis
Avascular necrosis: (AVN) A condition in which the poor blood supply to an area of bone leads to bone death. The head of the femur is often the site of AVN. Also called avascular necrosis and osteonecrosis.
Source: MedTerms™ Medical Dictionaryhttp://www.medterms.com/script/main/art.asp?articlekey=2408
Last Editorial Review: 11/20/2004
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