Abstract
Study Design
Retrospective review of a prospectively collected database.
Objective
To assess the incidence of deep vein thrombosis (DVT) associated with single- versus multistage posterior-only complex spinal surgeries.
Summary of Background Data
Dividing the physiologic burden of spinal deformity surgery into multiple stages has been suggested as a potential means of reducing perioperative complications. DVT is a worrisome complication owing to its potential to lead to pulmonary embolism. Whether or not staging affects DVT incidence in this population is unknown.
Methods
Consecutive patients undergoing either single- or multistage posterior complex spinal surgeries over a 12-year period at a single institution were eligible. All patients received lower extremity venous duplex ultrasonographic (US) examinations 2 to 4 days postoperatively in the single-stage group and 2 to 4 days postoperatively after each stage in the multistage group. Multivariate logistic regression was used to assess the independent contribution of staging to developing a DVT.
Results
A total of 107 consecutive patients were enrolled—26 underwent multistage surgery and 81 underwent single-stage surgery. The single-stage group was older (63 years vs. 45 years; p < .01) and had a higher Charlson comorbidity index (2.25 ± 1.27 vs. 1.23 ± 1.58; p < .01). More multistage patients had positive US tests than single-stage patients (5 of 26 vs. 6 of 81; 19% vs. 7%;p = .13). Adjusting for all the above-mentioned covariates, a multistage surgery was 8.17 (95% CI 0.35–250.6) times more likely to yield a DVT than a single-stage surgery.
Conclusions
Patients who undergo multistage posterior complex spine surgery are at a high risk for developing a DVT compared to those who undergo single-stage procedures. The difference in DVT incidence may be understated as the multistage group had a lower pre- and intraoperative risk profile with a younger age, lower medical comorbidities, and less per-stage blood loss.
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CCE II (reports other from Renovis Surgical, other from Renovis Surgical, outside the submitted work); NLL (none); LF (none); CCE (none).
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Edwards, C.C., Lessing, N.L., Ford, L. et al. Deep Vein Thrombosis After Complex Posterior Spine Surgery: Does Staged Surgery Make a Difference?. Spine Deform 6, 141–147 (2018). https://doi.org/10.1016/j.jspd.2017.08.012
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DOI: https://doi.org/10.1016/j.jspd.2017.08.012