Methods The degree of difficulty in intravertebral anesthesia of the patients(50 cases) with CT checking and without doing CT checking(50 cases) were analyzing retrospectively.

• 方法回顾术前参考做过腰椎间盘CT平扫50例病人,与术前未做过腰椎间盘CT检查的病人50例在腰椎椎管麻醉操作过程中的难易度进行总结。