Complication rates following stand-alone lateral interbody fusion: a single institution series after 10 years of experience

Purpose: This retrospective single institution study’s goal was to analyze and report the complications from stand-alone lateral lumbar interbody fusions (LLIF). Methods: This research was approved by the institutional review board (STUDY2021000113). We retrospectively reviewed the database of patients with adult degenerative spine deformity treated via LLIF at our institution between January 2016 and December 2020. Results: Stand-alone LLIF was performed in 158 patients (145 XLIF, 13 OLIF; mean age 65 y.; 88 f., 70 m.). Mean surgical time was 85 min (± 24 min). Mean follow-up was 14 months (± 5 m). Surgical blood loss averaged 120 mL (± 187 mL) and the mean number of fused levels was 1.2 (± 0.4 levels). Overall complication rate was 19.6% (31 total; 23 approach-related, 8 secondary complications). Conclusion: Lateral interbody fusion appears to be a safe surgical intervention with relatively low complication- and revision rates.