• Mark W Manoso, Amy M Cizik, Richard J Bransford, Carlo Bellabarba, Jens Chapman, and Michael J Lee.
• *Department of Orthopedics and Sports Medicine, University of Washington, Seattle, WA †Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, MD; and ‡Department of Orthopedics and Sports Medicine, Harborview Medical Center, Seattle, WA.
• Spine. 2014 Sep 15; 39 (20): 1707-13.

Study DesignThe Spine End Results Registry (2003-2004) is a registry of prospectively collected data of all patients undergoing spinal surgery at the University of Washington Medical Center and Harborview Medical Center. Insurance data were prospectively collected and used in multivariate analysis to determine risk of perioperative complications.ObjectiveGiven the negative financial impact of surgical site infections (SSIs) and the higher overall complication rates of patients with a Medicaid payer status, we hypothesized that a Medicaid payer status would have a significantly higher SSI rate.Summary Of Background DataThe medical literature demonstrates lesser outcomes and increased complication rates in patients who have public insurance than those who have private insurance. No one has shown that patients with a Medicaid payer status compared with Medicare and privately insured patients have a significantly increased SSI rate for spine surgery.MethodsThe prospectively collected Spine End Results Registry provided data for analysis. SSI was defined as treatment requiring operative debridement. Demographic, social, medical, and the surgical severity index risk factors were assessed against the exposure of payer status for the surgical procedure.ResultsThe population included Medicare (N = 354), Medicaid (N = 334), the Veterans' Administration (N = 39), private insurers (N = 603), and self-pay (N = 42). Those patients whose insurer was Medicaid had a 2.06 odds (95% confidence interval: 1.19-3.58, P = 0.01) of having a SSI compared with the privately insured.ConclusionThe study highlights the increased cost of spine surgical procedures for patients with a Medicaid payer status with the passage of the Patient Protection and Affordable Care Act of 2010. The Patient Protection and Affordable Care Act of 2010 provisions could cause a reduction in reimbursement to the hospital for taking care of patients with Medicaid insurance due to their higher complication rates and higher costs. This very issue could inadvertently lead to access limitations.Level Of Evidence3.

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