TCMEP Alarm Criteria to Predict Foot Drop Injury during Lumbosacral Surgery

BACKGROUND CONTEXT: Iatrogenic nerve injury has been described in many studies with the reported rates varying from 0.8% to 10% with the common deficit being a foot drop. Intraoperative neurophysiologic monitoring is commonly used during lumbar spine surgery to detect and prevent intraoperative iatrogenic neurological complications. Considering the limitations of SSEP and EMG monitoring alone some authors did suggest that TCMEPs could be considered for monitoring lumbosacral roots.

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