Predictors of Surgical Outcome in Acute Spinal Cord Injury Patients with Cervical Ossification of the Posterior Longitudinal Ligament

HIZ on magnetic resonance imaging was significantly related to the surgical outcomes, which should be highlighted in the preoperative communication with patients. Patients with lower Nirick grade and segmental OPLL would show better symptom before the operation. In addition, SCI caused by slipping or falling showed better symptoms before the operation. Patients with segmental OPLL should show better resolution of symptoms after the operation.