Management of intraoperative neuromonitoring signal loss

Intraoperative neuromonitoring is an important tool for providing safe and effective care to patients undergoing spine surgery. Combined neuromonitoring modes, including transcranial motor evoked potentials and somatosensory evoked potentials, are frequently used. Loss of neuromonitoring signals can be associated with potentially devastating consequences. This review discusses management of intraoperative neuromonitoring signal loss during spine surgery. The authors describe a stepwise algorithm for troubleshooting signal loss.