Avascular necrosis (AVN) is also called Osteonecrosis or Aseptic necrosis, or Ischemic bone necrosis which can lead to tiny breaks in the bone and the bone’s eventual collapse.
A broken bone or dislocated joint can interrupt the blood flow to a section of bone. Normally, the dead areas of bone don’t function, are gradually weakened, and ultimately collapse. This leads to the destruction of the joint adjacent to the involved bone.
Some people develop AVN on both sides (bilaterally), such as in both hips or both knees. This affects people of age between 30 and 50 years commonly.
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