4[1]Aigner N,Schneider W,Eberl V,et al. Core decompression in early stages of femoral head osteonecrosis-an MRI-controlled study[J]. Int Orthop,2002,26(1):31～35.
5[2]Bozic KJ, Zurakowski D,Thornhill TS, et al. Survivorship analysis of hip treated with core decompression for nontraumatic osteonecrosis of the femoral head[J]. J Bone Joint Surg(Am),1999,81(2):200～209.
6[3]Specchiulli F. Core decompression in the treatment of the femoral head long-term results[J]. Chir Organi Mov,2000,85(4):395～402.
7[4]Simank HG,Graf J, Kerber A,et al. Long-term effects of core decompression by drilling. Demonstration of bone healing and vessel ingrowth in an animal study[J]. Acta Anat(basel),1997,158(3):185～191.
8[5]Schneider W, Breitenseher M,Engel A, et al. The value of core decompression in treatment of femur head cecrosis[J]. Orthopade,2000,29(5):420～429.
9[6]Chang MC, Chen TH, Lo WH.Core decompression in treating ischemic necrosis of the femoral head[J]. Zhonghua Yi Xue Za Zhi(Taipei),1997,60(3):130～136.
10[7]Castro FP, JR, Barrack RL.Core decompression and conservarive treatment for avascular necrosis of the femoral head: a meta-analysis[J]. Am J Orthop,2000,29(3):187～194.
