Digas George, Georgiades George, Lampropoulou-Adamidou Kalliopi, Hartofilakidis George
Orthopaedic Department, Xanthi Hospital, Xanthi, Greece.
Eur J Orthop Surg Traumatol. 2013 Dec;23(8):901-6. doi: 10.1007/s00590-012-1105-x. Epub 2012 Oct 18.
Previous studies have shown that anatomical abnormalities of the femur in dislocated hips require the application of special CDH prosthesis for the reconstruction of the proximal femur in total hip arthroplasty (THA). We have retrospectively examined the clinical records and radiographs of 50 patients (67 hips) with low and high dislocations treated with THA in our institution, between January 1987 and December 1994. For the reconstruction of the femur, the stainless steel Charnley CDH stem, with polished surface, monoblock and collarless, was used in 32 hips; the Harris CDH stem, made of CoCr, precoated at the proximal part, modular and with collar was used in 35 hips. At the time of the latest follow-up, 11 Charnley and 6 Harris CDH stems had been revised for aseptic loosening at an average of 14 years (range 6-20) and 13 years (range 2-19), respectively. The survival rate at 20 years, with failure for aseptic loosening as the end point, was 63% for the Charnley and 78% for the Harris CDH stems. These results provide a basis for evaluation of newer techniques and designs.
Therapeutic study, Level IV.
以往研究表明，髋关节脱位时股骨的解剖异常需要应用特殊的先天性髋关节脱位（CDH）假体来重建全髋关节置换术（THA）中的股骨近端。我们回顾性研究了1987年1月至1994年12月期间在我们机构接受THA治疗的50例（67髋）高低位脱位患者的临床记录和X线片。对于股骨重建，32髋使用了表面抛光、一体式且无领的不锈钢Charnley CDH柄；35髋使用了由钴铬合金制成、近端预涂层、模块化且有领的Harris CDH柄。在最近一次随访时，分别有11个Charnley CDH柄和6个Harris CDH柄因无菌性松动而翻修，平均时间分别为14年（范围6 - 20年）和13年（范围2 - 19年）。以无菌性松动失败为终点，Charnley CDH柄20年生存率为63%，Harris CDH柄为78%。这些结果为评估更新的技术和设计提供了依据。
治疗性研究，IV级。
