Objective: to investigate the preventive effect of allogeneic fetal skull meningeal vertebral canaloplasty on epidural scar after laminectomy.
目的：探讨深低温同种异体胎儿颅骨脑脊膜椎管成形预防椎板切除后硬膜外瘢痕的效果。
Therefore , to introduce a method in the posterior approach operation of the lumbar vertebrae for the treatment of lumbar spinal canal stenosis with vertebral canaloplasty by remov.
目的：手术是腰椎间盘突出症和腰椎管狭窄症有效和可靠的方法。
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