Questions and Answers about Osteonecrosis (Avascular Necrosis)
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
Osteonecrosis is a disease resulting from the temporary or permanent loss of blood supply to the bones. Without blood, the bone tissue dies, and ultimately the bone may collapse.
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Disclaimer: The information provided here should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. The information is provided solely for educational purpose and should not be considered a substitute for medical advice.