目的探讨发育性髋关节脱位（DDH）股骨颈前倾角（FNA）的病理改变，并利用髋关节的三维（3D）CT影像指导手术。
Objective To discuss the femoral neck anteversion(FNA) of developmental dislocation of the hip(DDH) and guide operation with visual and digitalized picture in the dimensional(3D) CT.
目的：探讨联合术式在治疗小儿发育性髋关节脱位(DDH)上的临床效果。
Objective: To investigate the joint procedure in the treatment of children with developmental dislocation of the hip (DDH) on the clinical effect.
目的：探讨联合术式在治疗小儿发育性髋关节脱位(DDH)上的临床效果。
Objective: To investigate the joint procedure in the treatment of children with developmental dislocation of the hip (DDH) on the clinical effect.
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