Intraoperative neurophysiologic monitoring in idiopathic scoliosis surgery: a retrospective observational study of new neurologic deficits

Patients with adolescent idiopathic scoliosis undergoing corrective surgery are at risk for iatrogenic spinal cord injury and subsequent new neurologic deficits (NNDs). Intraoperative neurophysiologic monitoring (IONM) has been used to identify injury; however, available data showing that IONM leads improved clinical outcomes inconclusive. This exploratory study aimed examine the incidence of NNDs after in two pediatric institutions Canada a focus on use. Charts patients (10–18 yr) who underwent correction were retrospectively identified from operating room database. Data regarding severity (mild [isolated sensory deficit] vs severe [any motor deficit]) as well demographic characteristics extracted. Of 547 reviewed, 359 (66%) 186 (34%) wake-up test. Neuromonitoring missing patients. Total was 4.9% (95% confidence interval [CI], 3.1 6.8). Compared test, less likely develop (unadjusted odds ratio, 0.39; 95% CI, 0.18 0.86; P = 0.02). Nevertheless, subgroup analysis did not reveal statistical difference those severe) Combined anterior posterior approach also significantly associated increased such deficits. revealed reduced overall correction; its impact is questionable. As we unable adjust confounding variables, further research needed determine NNDs.