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Avascular necrosis (also called osteonecrosis, aseptic necrosis, or ischemic bone necrosis) is a disease that results from the temporary or permanent loss of blood supply to the bone. When blood supply is cut off, the bone tissue dies and the bone collapses. If avascular necrosis occurs near a joint, collapse of the joint surface may occur.
Avascular necrosis may be the result of the following:
In early stages, there may be no symptoms at all. However, as the disease progresses you can start experiencing pain. With time, this pain becomes more severe and constant interfering with your ability to use the specific joint.
The treatment depends on the severity of your condition and aims to prevent further bone loss.
Early symptoms can be reduced by medications and therapy such as:
Surgical procedures include core decompression, joint replacement and vascularised bone grafting.