Avascular necrosis of the femoral head may lead to surgery to replace this joint
It 
is a form of a THR, however in this procedure, only the head of the femur is 
removed as... [DOC] [TLE] Avascular Necrosis (Osteonecrosis): Symptoms, Treatment, and More [PAR] Sep 1, 2016 ... WebMD explains the symptoms and treatment of avascular necrosis ... 
Dislocation or fracture of the thigh bone (femur).