Related Experiment Video
Updated: Jul 10, 2026
Transforaminal Full-Endoscopic Lumbar Foraminotomy Under Local Anesthesia for L5/S1 Adjacent Segment Foraminal Stenosis
Published on: October 17, 2025
Sacral window for the surgery of L5 neurofibroma: a technical note
Metin Kaplan1, Mehmet Faik Ozveren
1Firat University, Neurosurgery Department, Elaziğ, Turkey. mtkaplan02@yahoo.com.tr
Objective:
To describe a way to increase the exposure for L5-S1 neurofibroma extending to presacral area.
Summary Of Background Data:
Since the neurofibromas of L5-S1 level generally extend to the extraforaminal and presacral area, their resection is difficult compared to other lumbar levels.
Methods:
A 46-year-old female presented with severe pain in her left leg. There was a mild motor power loss in her left ankle and toe at plantar and dorsiflexion, and a mild hypoesthesia in the posterior of the left foot and its base. Lumbar computed tomography and magnetic resonance imaging showed a mass in the left intervertebral foramen extending to the extraforaminal presacral area at the level of L5-S1. The tumor was removed through a surgical bone window in the base of the sacrum and resection of L5 transverse process on the left side.
Result:
The tumor was removed totally. Following surgery, the patient's pain had totally disappeared and there was no alteration in her neurological status.
Conclusion:
L5-S1 neurofibroma was totally resected through a surgical window in the base of the sacrum.
