查体测量与影像学测量股骨前倾角准确性的评价

Clinical method and radiograph techniques in measuring femoral anteversion:a comparative study

[目的]评价临床查体测量、CT测量、术中实体测量三种股骨颈前倾角测量方法的准确性,并对其临床应用的意义进行探讨。[方法]选择87例股骨头坏死患者,术前分别行:全股骨CT扫描,采用Murphy法计算前倾角;术前查体测量前倾角;进行关节置换术时,在股骨实体上测量前倾角。对三种方法测量得到的结果进行相关性分析。[结果]术中测量前倾角平均值8.57°±8.91°,查体测量平均值9.06°±9.40°,CT测量平均值14.26°±8.40°。三组测量值的相关性分析:查体测量与术中测量组间相关系数R2=0.87(P<0.05),CT测量与查体测量组间相关系数R2=0.79(P<0.05),CT测量与术中测量组间相关系数R2=0.81(P<0.05)。[结论]临床查体测量前倾角结果较准确,在临床中可作为初步测量和异常筛查的方法。

[Objective]To describe a clinical method for measuring femoral anteversion and compare that with measuring method of CT and clinical methods about their validity and invalidity.[Method]Eighty-seven patients with femur head necrosis（FHN） were chosen to measure the anteversion angle of femurs with CT and clinical methods.The measure results compared with values for anteversion that were obtained intraoperatively.[Result]Measure results of CT showed that an average anteversion angle difference was 14.26°±8.40°,mean difference of clinical method of male was 9.06°±9.40°,and mean difference of measurement in operation was 8.57°±8.91°.The Pearson correlation coefficient R2value for CT and clinical method was 0.79（P0.05）,R2 for CT and measurement in operation was 0.81（P0.05） and R2 for clinical method and measurement in operation was =0.87（P0.05）.[Conclusion]Clinical methods of measuring anteversion angle is a direct,easy and accurate method.