Cervical Spondyloptosis in a Patient With Os Odontoideum: A Case Report

A 30-year-old man presented to our clinic with progressive neck pain and dysphagia. He had been operated on for an atlantoaxial instability (os odontoideum) 7 years ago. Imaging studies revealed cervical spondyloptosis of C5-C6 and C7-T1; the neurologic examination was intact. It was decided to correct the deformity through a circumferential approach. Thus C5, C6, and C7 corpectomy, alongside anterior column reconstruction using titanium expandable cage, reinforced by posterior spinal instrumentation from occipital bone to T3 vertebra were performed; his symptoms resolved completely following an uneventful surgery.