抄録
We excised intradural tumors in the lumbar region by en bloc laminectomy using the Y-method. Incisions were made in the dura mater and arachnoid membrane using a T-saw to expose the surgical field. The laminectomy involved repositioning of the resected vertebral arches into their original positions and performing suture fixation with absorbable sutures. Bone fusion was achieved in the vertebral arch and spinous process, with posterior elements of the lumbar vertebra successfully preserved. The first case was a schwannoma and the second was a relatively rare epidermoid cyst.
