Avascular necrosis of the femoral head may lead to surgery to replace this joint
In many cases, the surgeon will use what is called a vascular graft, 
which ... Total joint replacement, or sometimes femoral head resurfacing, is often
... [DOC] [TLE] Avascular Necrosis of the Hip | eOrthopod.com [PAR] Damage to the blood supply can cause death of the bone that makes up the ball 
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