引言CO_2激光不同于应用透热或电磁作用的其他器械,它的主要优点是对周围组织并无损伤。CO_2激光能在背侧中线准确地、无损伤地恰好在两Gall氏薄束之间分离脊髓。用此法暴露肿瘤,外科医生能检查肿瘤是否分界清楚。如果肿瘤界限清楚,质坚硬,可用聚焦激光分离,输出功率少于15W,用不用显微镜帮助均可。 INTRODUCTION CO 2 lasers are different from other devices that use diathermy or electromagnetic action. Its main advantage is that there is no damage to the surrounding tissue. The CO 2 laser energy splits the spinal cord exactly between the two Gall’s thin bundles exactly and without damage on the dorsal midline. Using this method to expose the tumor, the surgeon can check whether the tumor has a clear boundary. If the tumor has a clear boundary and is hard, it can be separated with a focused laser and the output power is less than 15W. It can be done without a microscope.