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目的探讨髋脱位儿童髋臼容积的测量及意义。方法应用CT技术,测量正常组(34髋)和异常组(36髋)的髋臼容积、股骨头体积。结果正常组儿童的髋臼容积较脱位组明显增大,二者直线回归方程的截距差异有统计学意义。结论髋关节脱位的患儿髋臼发育差,与股骨头呈现明显的不匹配;早期手法复位时髋臼容积可以作为测量指标。手术复位前也应了解髋臼容积的变化。
Objective To investigate the measurement of acetabular volume in children with hip dislocation and its significance. Methods The volume of acetabulum and the volume of femoral head in normal group (34 hips) and abnormal group (36 hips) were measured by CT. Results The acetabular volume of children in normal group was significantly higher than that of dislocation group, and the intercept of linear regression equation was statistically significant. Conclusions Acetabular dysplasia in children with dislocation of the hip is obviously not matched with the femoral head. Acetabular volume can be used as the measurement index in the early manual reduction. Before surgery should also understand the changes in acetabular volume.