脑瘫患儿髋关节螺旋CT三维立体成像的临床研究

目的 探讨螺旋CT三维立体成像在脑瘫患儿合并髓关节异常中的诊断意义。方法 对35例髓关节X线检查诊断为可疑髋关节半脱位和发育不良的脑瘫患儿病例再行螺旋CT三维立体成像检查，测量Perkin′s方格、Shenton′s线、髂颈线和髋白角，并做统计学处理。结果 35例脑瘫患儿伴髓关节半脱位24例，占68．57％，其中双髋关节半脱位8例，占22．86％，同时合并髋关节发育不良3例。髋关节X线检查与螺旋CT检测Perkin′s方格、Shenton′s线、髂颈线比较有显著性差异（P＜0．05或＜0．01)。结论 螺旋CT三维立体成像对脑瘫患儿髓关节病变有重要诊断价值，可提供从X平片得不到的解剖学信息。

Clinical study of screw CT in diagnosing cerebral palsy complicated with dislocation of hip joint

ObjectiveTo explore the superiority of the screw CT in diagnosing the cerebral palsy complicated with dislocation of hip joint compared with the traditional X-ray.Methods35 patients with cerebral palsy were checked with screw CT and X-ray, and then their Perkin's check, Shenton line and Calve line were individually measured.Results24 cases(68.57%) are half dislocation of hip joint. The abnormalities of Perkin's check, Shenton line and Calve line in hip joint showed in screw CT were respectively compared with X-ray. The statistics shows P<0.05 or <0.01.Conclusions The screw CT is superior to the traditional X-ray in diagnosing the cerebral palsy complicated with dislocation of hip joint and can provide the important anatomy information.