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  • Risk Factors for Wound Complications Following Posterior Lumbar Fusion

    Final Number:
    1347

    Authors:
    Parth Kothari BS; Dante Leven DO; Samuel K Cho MD; Nathan John Lee BS; John I Shin BS; Jeremy Steinberger MD; Branko Skovrlj MD; Javier Z Guzman BS

    Study Design:
    Other

    Subject Category:

    Meeting: Congress of Neurological Surgeons 2015 Annual Meeting

    Introduction: Posterior lumbar fusion is a common surgical procedure with growing utilization. Wound complications can be catastrophic and consistent risk factors have not been identified using a large nationwide database. The American College of Surgeons National Surgical Quality Improvement Program (ACS NSQIP) provides a large multicenter database and allows for the analysis of potential risk factors.

    Methods: This was a retrospective analysis of prospectively collected data from the NSQIP database. Patients > 18 years old undergoing PLF, PLIF, TLIF or PLF with PLIF or TLIF between 2005 and 2012 were included. Patient baseline factors, perioperative data, preoperative labs, American Society of Anesthesiologists (ASA) scores and post-operative events were recorded. Patients in the two cohorts were compared using multivariate logistic regression analysis with significance defined as p < 0.05. Odds ratio (OR) was calculated with a 95% confidence interval.

    Results: During the study period 6,007 patients met inclusion criteria. Rate of any wound complication was 2.4% (141/6,007) with superficial infection 1.4% (82/6,007), deep infection 0.6% (35/6,007), wound dehiscence 0.3% (16/6,007) and organ space infection 0.2% (12/6,007). Patients with wound complications had a higher rate of reoperation (2.4% vs 47.5%, p<0.0001), readmission (1.7% vs 21.3%, p<0.0001) and total length of stay > 5 days (17.7% vs 30.5%, p<0.0001). Independent predictors of wound complications were obese class III (OR 4.6, 2.8-7.5), prior stroke (OR 2.0, 0.9-4.2), bleeding disorder (OR 4.4, 2.1-9.2).

    Conclusions: Higher rates of wound complications were associated with patient comorbidities and prior functional status as well as longer operative time. As expected higher reoperation rates, readmissions and longer LOS were associated with patients developing wound complications. These factors should be considered during perioperative care in patients undergoing elective posterior lumbar fusion.

    Patient Care: Better understanding risk factors for wound complications will help physicians better stratify patients based on risk prior to surgery.

    Learning Objectives: By the conclusion of this session, participants should be able to understand risk factors for wound complications in patients undergoing posterior lumbar fusion.

    References:

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