2Weaver C J, Major NM, Garrett WE, et al. Femoral head osteochondral lesions in painful hips of athletes: MR imaging findings. AJR Am J Roentgenol, 2002, 178 : 973-977.
3Fujioka M, Kubo T, Nakamura F, et al. Initial changes of nontraumatic osteonecrosis of femoral head in fat suppression images: bone marrow edema was not found before the appearance of band patterns. Magn Roson Imaging, 2001, 19: 985-991.
4Nishii T, Sugano N, Ohzono K, et al. Significance of lesion size and location in the prediction of collapse of osteonecrosis of the femoral head : a new three-dimensional quantification using magnetic resonance imaging. J Orthop Res,2002, 20: 130-136.
5Koo KH, Kim R. Quantifying the extent of osteonecrosis of the femoral head: a new method using MRI. J Bone Joint Surg Br,1995, 77: 875-880.
6Piettogrand V, Mastromarino R. Osteopatda prolungata trattamento cortisonico. Ortop Traum Appar Mar, 1957, 25 : 791-10.
7Hirota Y, Hotokebuchi T, Sugioka Y. Epidemiologic Survey on idiopathic osteonecrosis of the femoral head in Japan. In: Urbaniak JR and Jones JP, et al. Osteonecrosis : etiology, diagnisis, and treatment. Rosemout IL : American Academy of Orthopaedic Surgeons, 1997.39-44.
8Lieberman JR, Berry DJ, Mont MA, et al. Osteonecrosis of the hip: management in the twenty-first century. J Bone Joint Surg Am,2002, 84:834-853.
9Felson DT, Anderson JJ. Across-study evaluation of association between steroid dose and bolus steroids and avascular necrosis of bone. Lancet,1987, (8538) : 902-906.
10Jones LC, Hungerford DS. Overview of osteonecrosis of the hip and current treatment options. Curr Opin Orthop, 2003, 14: 12-16.
