Assessing the predictive utility of preoperative canal diameter, foraminal stenosis, and cord-lamina angle for postoperative C5 palsy: a matched cohort validation study.
OBJECTIVE Postoperative C5 palsy is a debilitating complication of cervical spine surgery with unclear etiology. A previous study of 12 patients proposed a three-variable model to predict postoperative C5 palsy based on MRI measurements of the anteroposterior diameter of the spinal canal (APD), foraminal diameter (FD),...