Franzén H, Toksvig-Larsen S, Lidgren L, Onnerfält R
Department of Orthopaedics, Lund University Hospital, Sweden.
J Bone Joint Surg Br. 1995 Nov;77(6):862-4.
We report the preliminary findings of the use of roentgen stereophotogrammetric analysis to evaluate the early migration of five femoral components after revision for mechanical loosening using impacted cancellous allograft and cement. All hips were examined at one week, four to six months and one year after surgery. All the components subsided by 0.4 to 4.9 mm during the first year. In four hips the prosthetic head was displaced 1.1 to 6.9 mm posteriorly. Fixation of the femoral components was less secure than after primary arthroplasty but the incidence and magnitude of early migration were similar to those after revision with cement alone.
我们报告了一项初步研究结果，该研究使用X线立体摄影测量分析来评估在使用同种异体松质骨移植和骨水泥对五例因机械性松动而进行翻修的股骨假体进行翻修后早期的移位情况。所有髋关节均在术后1周、4至6个月以及1年时进行检查。在第一年中，所有假体均下沉了0.4至4.9毫米。在四个髋关节中，假体头部向后移位了1.1至6.9毫米。股骨假体的固定比初次关节置换术后的固定稳定性要差，但早期移位的发生率和幅度与单纯使用骨水泥进行翻修后的情况相似。
