A Comparative Retrospective Study of UBE-ULBD Versus Open Surgery for Severe Thoracic Spinal Stenosis Caused by Ossification of Ligamentum Flavum

OBJECTIVE: This study evaluates the safety and efficacy of UBE-ULBD for severe thoracic stenosis caused by high-occupancy TOLF. METHODS: This was a retrospective comparative cohort study. 57 patients were divided into Group A and Group B. Perioperative variables, imaging findings, and clinical outcomes were compared. RESULTS: = 0.033). No other significant differences were found. CONCLUSIONS: In this retrospective cohort, UBE-ULBD provided similar neurological recovery to open surgery with earlier recovery and fewer complications in patients with high-occupancy TOLF.