专题组织人：张永刚教授
　　强直性脊柱炎后凸畸形是病变后期出现的脊柱矢状面上的屈曲畸形，严重影响患者平视、仰卧、行走等功能而造成生活质量下降。脊柱截骨矫形是其惟一的治疗方法^[1-3]_。截骨目的是矢状面平衡的重建、平视功能的恢复、畸形的矫正。就手术入路而言截骨矫形包括前入路、前后联合入路和后入路，当前以后入路术式为主。后入路截骨方式有多种，包括SPOs、PSO、VCR、VCD等，应用较多的的是SPOs、PSO截骨术^[4-6]_。VCR、VCD主要应用于后凸顶点较局限或顶椎区楔形变的重度角状后凸畸形^[6-8]_。按照脊柱截骨矫形后的三柱变化，临床常用的截骨方法主要有开张型截骨（OWO）、闭合型截骨( CWO)和闭合-开张型截骨(COWO) ^[7]_。各种截骨方式各有优缺点，尚无一种方式能够满足所有要求。截骨部位、程度、数量、形式的选择决定了后凸畸形的治疗效果，考虑的因素除局部因素、区域因素外还应考虑整体因素。对于一名强直性脊柱炎后凸畸形需要截骨治疗的患者，您是怎样考虑截骨部位，脊柱节段，及头颈、骨盆、下肢的情况以协助选择截骨方式的呢？
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