Keith J E, Brashear H R, Guilford W B
Division of Orthopaedics, University of North Carolina, Chapel Hill.
J Bone Joint Surg Am. 1988 Jun;70(5):711-4.
The treatment of a posterior fracture-dislocation of the hip is strongly influenced by the surgeon's assessment of stability of the hip after the dislocation has been reduced. Stability is inversely related to the size of the posterior acetabular fragment. Computed tomography was used to measure the size of the fracture fragment in nine cadavera of adults. Progressive increments of bone were removed from the posterior part of the acetabular wall in sixteen hips. After each osteotomy, the hip was tested for stability and was measured by computed tomography until it became unstable. All hips from which less than 20 per cent of the posterior part of the acetabular wall was removed were stable, while those from which more than 40 per cent was removed were unstable.
髋关节后脱位骨折的治疗很大程度上受外科医生对脱位复位后髋关节稳定性评估的影响。稳定性与髋臼后缘骨折块的大小呈负相关。利用计算机断层扫描测量了9具成年尸体骨折块的大小。在16个髋关节中，从髋臼后壁后部逐渐去除骨质。每次截骨后，对髋关节进行稳定性测试，并通过计算机断层扫描进行测量，直至其变得不稳定。髋臼后壁后部去除少于20%的所有髋关节均稳定，而去除超过40%的则不稳定。
