Avascular necrosis or osteonecrosis, which is brought on by a lack of blood supply, results in the death of bone tissue.
Avascular necrosis is the term for the death of bone tissue as a result of a lack of blood flow. In addition to causing small fractures and bone collapse, it is also known as osteonecrosis. A broken bone or dislocated joint can cut off the blood supply to a section of bone. Bone death known as osteonecrosis is caused by inadequate blood supply. Although it can also affect other large joints like the knee, elbow, wrist, and ankle, the hip and shoulder are where it most usually manifests itself.
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