Perioperative Visual Loss in Spine Fusion Surgery

Background Perioperative ischemic optic neuropathy (ION) causes visual loss in spinal fusion. Previous case–control studies are limited by study size and lack of a random sample. The purpose of this study was to study trends in ION incidence in spinal fusion and risk factors in a large nationwide administrative hospital database. Methods In the Nationwide Inpatient Sample for 1998 to 2012, procedure codes for posterior thoracic, lumbar, or...