Definition: Aseptic or avascular necrosis of the femoral head. The major types are idiopathic (primary), as a complication of fractures or dislocations, and LEGG-CALVE-PERTHES DISEASE.
Other names Necrosis, Avascular, of Femur Head; Necrosis, Aseptic, of Femur Head; Avascular Necrosis of Femur Head; Aseptic Necrosis of Femur Head; Necrosis, Femur Head; Head Necrosis, Femur; Femur Head Necroses