5LEE J S, LEE J S, ROH H L, et al. Alterations in the differentiation ability of mesenchymal stem sells in patients with nontraumatic osteonecrosis of the femoral head: comparative analysis according to the risk factor[J]. J Orthop Res, 2006, 24(4): 604-609.
6DRESCHER W, BUNGER M H, WEIGERT K, et al.Methylprednisolone enhances contraction of porcine femoral head epiphyseal arteries[J]. Clin Orthop Relat Res,2004, 42(3):112-117.
7HORIUCHI H, HASHIKURA Y, HISA K,et al.Osteonecresis of the femoral head in Japanese adults after liver transplantation: a preliminary report [J]. J Orthop Sci,2004, 9(2):119-121.
8ASSOULINE-DAYAN Y, CHANG C, GREENSPAN A,et al. Pathogenesis and natural history of osteonecrosis[J]. Semin Arthritis Rheum, 2002, 32(2):94-124.
9TANG S, CHAN T M, LUI S L, et al. Risk factors for avascular bone necrosis after renal transplantation [J].Transplant Proc, 2000, 32 (7):1873-1875.
10BURGENER F A, MEYERS S P, TAN R K, et al.Differentian diangnosls in magnetic resonance imaging[M]. New York: Thieme Stuttgart, 2002:360-362.