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[目的]验证三维打印腰椎模型的精确度,设计经椎弓根经椎间盘斜向螺钉导航模板,并验证该模板指导置钉的准确度。[方法]从PACS系统中获得45例腰椎影像CT数据,导入Mimics软件中进行三维重建,以STL格式导出到Cura中,以Gcode保存,三维打印腰椎模型。在PACS影像系统和三维打印模型上测量以下参数:WVD(Width of vertebral body):椎体宽度;APDVD(Anteroposterior diameter of vertebral body):椎体前后径;LHVD(Left height of vertebral body):左侧椎体高度;RHVD(Right height of vertebral body):右侧椎体高度;WVC(Width of vertebral canal):椎管宽度;APDVC(Anteroposterior diameter of vertebral canal)椎管前后径;WRP(Width of right pedicle):右侧椎弓根宽度;HRP(Height of right pedicle):右侧椎弓根高度;WLP(Width of left pedicle):左侧椎弓根宽度;HLP(Height of left pedicle):左侧椎弓根宽度。