抄録
Two cases of cervical intradural meningioma located anterior from the spinal cord were successfully resected by hemilaminectomy. Sensory evoked potential (SEP) was monitored through the operation. Since we approached from postero-lateral direction, the margin between spinal cord and tumor was easily identified. Resection was safely performed because of the flatness of the cord. In one case the arising site of the tumor from the dura was resected and patched with an artificial dura. In the other case the arising site was burned by bipolar cautery because of the existence of a venous plexus in that site. Preoperative symptoms, numbness and spasticity of extremities disappeared in both cases after surgery. Follow-up period up to 1 year revealed no evidence of tumor recurrence. In addition, neurological symptoms were absent. Our results suggest that the posterior approach hemilaminectomy with SEP monitoring is a less invasive and safe method for intradural cervical meningioma arising from the anterior site of the dura.
