• Eur Spine J · Jul 2022

    Lumbar surgical drains do not increase the risk of infections in patients undergoing spine surgery.

    • Zorica Buser, Ki-Eun Chang, Ronald Kall, Blake Formanek, Anush Arakelyan, Sarah Pak, Betsy Schafer, John C Liu, Jeffrey C Wang, Patrick Hsieh, and Thomas C Chen.
    • Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA. zbuser@usc.edu.
    • Eur Spine J. 2022 Jul 1; 31 (7): 1775-1783.

    PurposeThe aim of this study was to characterize if the use of surgical drains or length of drain placement following spine surgery increases the risk of post-operative infection.MethodsRecords of patients undergoing elective spinal surgery at a tertiary care center were collected between May 5, 2016 and August 16, 2018. Pre-operative baseline characteristics were recorded including patient's demographics and comorbidities. Intraoperative procedure information was documented related to procedure type, blood loss, and antibiotics used. Following surgery, patients were then further subdivided into two groups: patients who were discharged with a spinal surgical site drain and patients who did not receive a drain. Post-operative surgical variables included length of stay (LOS), drain length, number of antibiotics given, and type of post-operative infection. Univariate and multivariate statistical analysis was conducted.ResultsA total of 671 patients were included in the current study, 386 (57.5%) with and 285 (42.5%) without the drain. The overall infection rate was 5.7% with 6.22% among patients with the drain compared to 4.91% in patients without drain. The univariate analysis identified the following variables to be significantly associated with the infection: total number of surgical levels, spinal region, blood loss, redosing of antibiotics, length of stay, length of drain placement, and number of antibiotics (P < 0.05). However, the multivariate analysis none of the predictors was significant.ConclusionsThe current study shows that the placement of drain does not increase rate of infection, irrespective of levels, length of surgery, or approach.© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.

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