Patients with renal failure, femoral cysts, osteoporosis or a-vascular necrosis (AVN) of the femoral head were excluded ... After dislocating the hip joint, acetabular osteophytes were removed ...
Radiographs showed permeative lytic lesions in the right femoral head ... acetabular fovea. An intraoperative diagnosis consistent with PVNS was given after frozen section examination of the hip ...
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