姬勇;肖建如;Todd A.Milbrandt;Chun-feng Zhao;A.Noelle Larson;贾连顺;

• 1:海军军医大学附属长征医院骨科
• 2:梅奥医学中心骨科

摘要(Abstract)：

[目的]通过术前仰卧位MRI平扫和术中O型臂导航系统获得的俯卧位椎体旋转影像,探讨青少年特发性脊柱侧凸患者不同体位对椎体旋转的影响。[方法]回顾性分析2013年4月～2018年7月本医学中心骨科收治的21例青少年特发性脊柱侧凸(AIS)并接受后路切开内固定矫正术的患者,术前均行仰卧位全脊柱MRI平扫和术中俯卧位脊柱O型臂导航系统平扫及三维重建,上传临床图像显示系统Qreads5.10,采用G??en法分别测量同一患者同一椎体术前MRI和术中O型臂平扫的椎体旋转角,测量椎体的旋转包括主胸弯顶椎(AVR)、上端椎(UEVR)、下端椎(LEVR)、上端椎上位椎体(AVAUEVR)、下端椎下位椎体(AVBLEVR),使用配对t检验比较椎体不同体位下的旋转差异。[结果]患者在俯卧位(即常规后路手术体位)时主胸弯顶椎旋转度数(AVR)显著大于仰卧位时的度数,平均差值为3.14°,差异有统计学意义(P=0.015,<0.05)。俯卧位UEVR、AVAUEVR度数比仰卧位时均有所增加,平均差值分别为1.98°、0.83°,俯卧位LEVR、AVBLEVR度数较仰卧位时均有所减小,平均差值分别为1.07°、1.86°,但UEVR、LEVR、AVAUEVR、AVBLEVR在两种体位下的度数差异均无统计学意义(P>0.05)。[结论]与术前仰卧位MRI测量结果相比,术中俯卧位O型臂导航系统测量的AVR显著增大,而UEVR、AVAUEVR稍有增加,LEVR、AVBLEVR稍有减少。

关键词(KeyWords)： O型臂导航;椎体旋转;青少年特发性脊柱侧凸;仰卧位;俯卧位

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 姬勇;肖建如;Todd A.Milbrandt;Chun-feng Zhao;A.Noelle Larson;贾连顺;

Email:

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参考文献(References)：

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