Risk Factors Analysis Of Thoracolumbar Posterior Surgery Incision Infections

Objective:To explore the risk factors of the surgical site infections after the thoracolumbar posterior surgery.Methods:The clinical data of 454 patients who underwent the thoracolumbar posterior surgery at a university-affiliated hospital from December 2013 to November 2015.The patients with surgical site infections were assigned as the Infection group,and the patients without the surgical site infections were set as the control group,The related clinical data of the two groups were compared.Risk factors were analyzed by univariate analysis and multivariate logistic regression.Results:A number of 21 infected patients in 764 cases of spinal surgery patients were infected,the infection rate was 2.87%.Totally 18 pathogens were isolated from of the samples of incision infection patients.Gramnegative bacteria accounted for88.89%,and grampositive bacteria accounted for11.11%.Multivariate logistic regression analysis screened out five independent risk factors: age,Preoperative hospital stay,Whether bone grafting,Postoperative catheterization time,transferred to ICU after surgery.Conclusion:Spinal surgery postoperative infection pathogens mainly are gramnegative bacteria.age,Preoperative hospital stay,Whether bone grafting,Postoperative catheterization time,transferred to ICU after surgery are independent risk factors for spinal surgery incision inections.