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Intraoperative Monitoring 

Intraoperative Monitoring
Chapter:
Intraoperative Monitoring
Author(s):

Jun Kimura

DOI:
10.1093/med/9780199738687.003.0021
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date: 13 June 2021

Intraoperative examination serves a variety of purposes: it characterizes the nerve injury, elucidates the mechanism and severity of the lesion,warns the surgeons if a tissue considered for dissection contains neural elements, and guides them to take an appropriate course of action.Electrodiagnostic techniques available for this purpose comprise nerve stimulation technique and electromyography. Additional techniques to monitor spinal cord surgery include study of scalp-recorded far-field potentials, segmental recording of spinal potential after epidural stimulation, and motor evoked potential elicited by transcranial magnetic stimulation. The same principles apply to any intraoperative monitoring as it pertains to different surgical exploration for peripheral and central nervous system. This chapter reviews common procedures requiring such intraoperative monitoring, which include release of tethered spinal cord, pedicle screw placement, and selective dorsal rhizotomy.

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