• Sahil Gupta, Xu Tao, Abhijith V Matur, Andrew Wu, Sai S Chilakapati, Paolo Palmisciano, Fatu S Conteh, Henry O Duah, Geet Shukla, Phillip Vorster, Julia Garcia-Vargas, David Kwan, and Owoicho Adogwa.
• Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, OH.
• Spine. 2023 Jul 1; 48 (13): 944949944-949.

Study DesignSystematic review and meta-analysis.ObjectiveTo perform a systematic review and meta-analysis investigating the rate of adverse events after spine surgery in patients who underwent bariatric surgery (BS).Summary Of Background DataObesity is an established risk factor for postoperative complications after spine surgery. BS has been associated with improvements in health in patients with severe obesity. However, it is not known whether undergoing BS before spine surgery is associated with reduced adverse outcomes.Materials And MethodsPubMed, EMBASE, Scopus, and Web-of-Science were systematically searched according to "Preferred Reporting Items for Systematic Reviews and Meta-Analyses" guidelines. The search included indexed terms and text words from database inception to the date of the search (May 27, 2022). Data and estimates were pooled using the Mantel-Haenszel method for random-effects meta-analysis. Risk of bias was assessed using the Joanna Briggs Institute risk of bias tool. The primary outcome was an all-cause complication rate after surgery. Relative risks for surgical and medical complications were assessed.ResultsA total of 4 studies comprising 177,273 patients were included. The pooled analysis demonstrated that the all-cause medical complication rate after spine surgery was lower in patients undergoing BS (relative risk: 0.54, 95% CI: 0.39, 0.74, P < 0.01). There was no difference in rates of surgical complications and 30-day hospital readmission rates between the cohort undergoing BS before spine surgery and the cohort that did not.ConclusionThese analyses suggest that obese patients undergoing BS before spine surgery have significantly lower adverse event rates. Future prospective studies are needed to corroborate these findings.Level Of Evidence4.Copyright © 2023 Wolters Kluwer Health, Inc. All rights reserved.

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