• Hai V Le, Joseph B Wick, Renaud Lafage, Michael P Kelly, Han Jo Kim, Munish C Gupta, Shay Bess, Douglas C Burton, Christopher P Ames, Justin S Smith, Christopher I Shaffrey, Frank J Schwab, Peter G Passias, Themistocles S Protopsaltis, Virginie Lafage, Eric O Klineberg, and International Spine Study Group.
• Department of Orthopaedic Surgery, UC Davis Medical Center, Sacramento, CA.
• Spine. 2022 Jan 15; 47 (2): 136143136-143.

Study DesignRetrospective review of prospectively collected multicenter registry data.ObjectiveThe aim of this study was to determine whether surgical variables and complications as graded by treatment severity impact postoperative hospital length of stay (LOS).Summary Of Background DataSurgical treatment can substantially improve quality of life for patients with adult spinal deformity (ASD). However, surgical treatment is associated with high complication rates, which may impact hospital LOS. Classifying complications by severity of subsequent treatment may allow surgeons to better understand complications and predict their impact on important outcome metrics, including LOS.MethodsPatients enrolled in a multicenter, prospectively enrolled database for ASD were assessed for study inclusion. Complications were graded based on intervention severity. Associations between LOS, complication intervention severity, and surgical variables (fusion length, use of interbody fusion, use of major osteotomy, primary versus revision surgery, same day vs. staged surgery, and surgical approach), were assessed. Two multivariate regression models were constructed to assess for independent associations with LOS.ResultsOf 1183 patients meeting inclusion criteria, 708 did not and 475 did experience a perioperative complication during their index hospitalization, with 660 and 436 included in the final cohorts, respectively. Among those with complications, intervention severities included 14.9% with no intervention, 68.6% with minor, 8.9% with moderate, and 7.6% with severe interventions. Multivariate regression modeling demonstrated that length of posterior fusion, use of major osteotomy, staged surgery, and severity of intervention for complications were significantly associated with LOS.ConclusionCareful selection of surgical factors may help reduce hospital LOS following surgery for ASD. Classification of complications by treatment severity can help surgeons better understand and predict the implications of complications, in turn assisting with surgical planning and patient counseling.Level of Evidence: 4.Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.

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