目的介绍一种新的骨盆截骨的手术操作方法，即髋臼坐骨切迹周围骨盆截骨术。
Objective To describe a new procedure of pelvic osteotomy around the acetabulum and sciatic notch for developmental dysplasia of the hip(DDH).
方法设计制作骨盆支撑内固定钉，行小儿麻痹后遗症下肢短缩畸形，髂骨截骨延长术内固定32例。
Methods 32 cases of polio sequela were treated by internal fixation with self designed pelvic strut nailing.
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