Unilateral External Anal Sphincter MEP Monitoring in a Case of Conus Medullaris Tumor.

The use of intraoperative neurophysiological monitoring is a helpful tool during surgeries of conus medullaris tumors and helps in reducing the risk of post-operative functional compromise like paraparesis, sensory deficits, or urological dysfunctions. External anal sphincter (EAS) motor evoked potential (MEP) monitoring is usually done for monitoring sacral nerve roots and to prevent post-operative neurological deficits. Here we describe a case where unilateral motor cortical stimulation aided us to differentiate the laterality of TcMEP responses in EAS.

Multimodal Intraoperative Neurophysiological Monitoring in Spine Surgeries: The Experience at a Spine Centre through Years.

Study Design: Retrospective observational study.

Purpose: To share our experience of multimodal intraoperative neurophysiological monitoring (IONM) used in Sakra World Hospital, Bengaluru in various spine surgeries.

Overview Of Literature: The development of new onset postoperative neurological deficits can be completely avoided.