【摘要】 目的 :研究髋臼缘内移截骨 ,在髋臼发育不良治疗中的可行性。方法 :选用 10个防腐骨盆 2 0个髋臼 ,从髋臼缘向内 2cm处 ,将髋臼锯断 ,将髋臼密质骨层以及髋关节囊进行测量。结果 :髋臼缘密质层厚度 (钟表法表达 ) 9点经 12点至 3点最厚达 3 5～ 5 0mm ,4点经 6点至 9点逐渐变薄约 3～ 4mm ,关节囊厚度 9点经 12点至 3点4 6～ 5 5mm ,其他部位髋关节囊厚度约 3 5mm ,尔后将尸体标本用线锯做髋臼缘顶端截骨 ,推截骨远端内移后发现 ,髋臼明显加深 ,股骨头负重中心线点可内移约 2～ 2 5cm ,对股骨头基本可完成全部覆盖。对内移后的股骨头受力情况进行了生物力学测定。结论 :髋臼缘内移截骨术 ,对髋臼发育不良的治疗开辟了一个新的手术方法。更多还原

【Abstract】 Objective:To study the feasibility of treatment of acetabular dysplasia by using osteotomy and medial migration of acetabular rim.Method:Twenty acetabular of 10 cadaver pelvis were selected and sawed at 2cm towards midline of acetabulum.The thickness of acetabular compact bone and hip-joint capsule were measured.The osteotomy was performed on the top of acetabular rim and the distal part of acetabular rim were pushed towards midline.Result:In the acetabular rim,the thickest compact bone layer was 3.5～5.0mm at 9∶00 to 02∶00 clockwise (expressed with clock method) and the thinest was 3～4mm at 04∶00 to 09∶00;the thickness of hip-joint capsule at 9∶00 to 03∶00 clockwise was 4.6～5.5mm,that of other portions of hip-joint capsule was 3.5mm.The acetabula were evidently deepend and the central line of load in the head of femur were moved towards midline 2～2.5cm,after osteotomy and medial migoation of acetabular rim.The new acetabular could basically cover the head of femur;biomechanical test shoused the additimal torque approad to 0 as the femoral head moved medially.Conclusion:Osteotomy and medial migration of acetabular rim is a new operative method for treating acetabular dysplasia.更多还原