Fig. 3From: The indications for core decompression surgery in patients with ARCO stage I-II osteonecrosis of the femoral head: a new, comprehensive prediction systemA 52-year-old male patient with ONFH of his right hip. He had undergone CD surgery 2 years previously. (A) Nevertheless, no evidence of a subchondral fracture, a fracture in the necrotic portion or flattening of the femoral head was observed. (B) Preoperative X-rays. (C) Preoperative CT. (D) Preoperative MRI.Back to article page