Incidental Durotomy Significantly Increases the Risk of Postoperative Infection Following Lumbar Spine Surgery for Degenerative Conditions: A Systematic Review and Meta-analysis.
Tamara Babasiz, Jannik Leyendecker, Maximilian Weber, Philipp Egenolf, Jürgen Hampl, Ayla Yagdiran, Peer Eysel, Krishnan Sircar
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Abstract
Background: Accidental dural tear (ADT), an unintended intraoperative breach of the dura mater, is a recognized complication in lumbar spine surgery for degenerative conditions. Postoperative surgical site infections are serious adverse outcomes in this context. However, the role of ADT in increasing postoperative infection risk remains insufficiently defined. This systematic review and meta-analysis aimed to comprehensively assess the association between ADT and the occurrence of postoperative infection.
Methods: A systematic literature search was performed in PubMed, ScienceDirect, and CENTRAL from inception to 6 August 2024. Studies involving degenerative lumbar surgery and reporting data on both incidental durotomy and postoperative infections were included. Study quality, including risk of bias analysis, was appraised by 2 independent observers. Subsequently, 2 meta-analyses were conducted, estimating the pooled incidence of infection among patients with ADT and another calculating pooled odds ratios to evaluate infection risk.
Results: Fourteen studies comprising 376,164 patients met the inclusion criteria. The incidence of ADT ranged from 1.9% to 11.8%, with higher rates observed in revision surgeries. Key risk factors included obesity, diabetes, revision surgery, advanced age, and extended operative time. The meta-analysis comprised 7 studies, including 7500 patients with dural tears and 189,058 patients without dural tears. The pooled incidence of postoperative infection among patients with ADT was 13.1% (95% CI: 6.8%-23.8%), which was significantly higher compared with 5.4% (95% CI: 3.1%-7.5%) among patients without ADT (P = 0.00078). Substantial heterogeneity was observed across studies (I2 = 76.5% for ADT patients and 96.0% for non-ADT patients; Tau2 = 0.63). A separate meta-analysis of 5 studies reported a pooled odds ratio of 3.86 (95% CI: 2.48-6.3, P < 0.00001), indicating a significantly increased infection risk associated with ADT.
Conclusion: ADTs during lumbar spine surgery for degenerative conditions are associated with a significantly increased risk of postoperative infections. Although this relationship is multifactorial, affected by surgical complexity and patient comorbidities, these findings underscore the importance of heightened vigilance in infection prevention and control following ADT to reduce infection-related morbidity.
Clinical relevance: Incidental dural tear during lumbar spine surgery for degenerative conditions significantly increases the risk for postoperative infection and should be a focus of preventive strategies.
期刊介绍：
The International Journal of Spine Surgery is the official scientific journal of ISASS, the International Intradiscal Therapy Society, the Pittsburgh Spine Summit, and the Büttner-Janz Spinefoundation, and is an official partner of the Southern Neurosurgical Society. The goal of the International Journal of Spine Surgery is to promote and disseminate online the most up-to-date scientific and clinical research into innovations in motion preservation and new spinal surgery technology, including basic science, biologics, and tissue engineering. The Journal is dedicated to educating spine surgeons worldwide by reporting on the scientific basis, indications, surgical techniques, complications, outcomes, and follow-up data for promising spinal procedures.
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