The utilization of a novel Outpatient Appropriateness Fragility Score to predict inpatient stay following biportal lumbar endoscopic decompression.

Background: Biportal endoscopic spine surgery offers advantages such as reduced postoperative pain and faster recovery, often enabling same-day discharge. However, the patient-specific factors influencing the need for inpatient admission remain unclear. This study evaluates variables contributing to overnight stays following biportal lumbar endoscopic decompression and proposes a predictive fragility score.