What is Avascular Necrosis of the hip?

What is avascular necrosis? Avascular necrosis (AVN), or osteonecrosis, is a disease that arises as a result of temporary or permanent loss of blood supply to the bone. More specifically, avascular necrosis of the hip arises when the blood supply to the head of the thigh bone (also known as the femur) is disrupted. If

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