后路短螺丝钉固定术治疗骶髂关节骨折脱位实验研究与临床Posterior Short Screws Fixation Stabilize Sacroiliac Joint Dislocation
锡林宝勒日,白靖平,芦勇,王以进,甘子民,崔静
摘要(Abstract)：
目的:探讨后路短螺丝钉固定治疗骶髂关节骨折脱位的安全性和疗效。方法:骶骨应用解剖,骶髂关节脱位模型生物力学实验,11例病人手术方法及疗效分析。结果:应用解剖,(1)骶骨耳状面下缘在S_(2、3)后孔连线中下1/3以下者占86.6％;(2)S_(2、3)侧柱呈直角梯形。S_2侧柱横截面前后径(28.3±1.7)mm,S_3侧柱横截面前后径中部为(21.4±1.5)mm,中下1/3处为(8.4±1.1)mm;(3)骶后中间嵴到耳状面中轴垂直距离:S_2水平处(26.7±2.6)mm,S_3水平处(27.2±2.8)mm。骶后孔连线:S_(1、2)间(17.4±1.6)mm,S_(2、3)间(17.6±2.1)mm。生物力学:(1)2枚短螺丝钉固定可以控制骶髂关节的移位,同时前部固定后明显增加骨盆的强度和刚度,并可以对抗剪切力。临床部分:治疗11例病人平均随访5.4年,优7例,良4例。结论:后路短螺丝钉经过骶骨侧柱中上部,不超过骶孔连线固定骶髂关节,不但能获得牢固的固定,同时能有效的避免神经损伤,骶髂关节植骨融合其远期疗效好。
关键词(KeyWords)： 骶髂关节脱位;手术;生物力学;骶骨;解剖
基金项目(Foundation):
作者(Author): 锡林宝勒日,白靖平,芦勇,王以进,甘子民,崔静
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