Abstract
Ossification of the posterior longitudinal ligament (OPLL) is one of the causes of spinal stenosis or spinal cord compression. Surgical treatment could be considered in patients with OPLL, especially those who have neurological deficits. The perioperative complication of surgeries for OPLL included cerebrospinal fluid leakage, C5 nerve root palsy, dysphonia, dysphagia, and other neurological deficits. Intraoperative neurophysiological monitoring (IONM) is an effective tool for predicting neural damage during surgery and preventing irreversible neurological deficits. IONM could be a useful tool for monitoring neurological deterioration and preventing permanent neurological deficits. In this review, we reviewed IONM methods for OPLL surgery and discussed the usefulness of IONM in OPLL surgery.
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