Multivariate Analysis Of Early Surgical Site Infection After Endoscopic Spinal Surgery

Research background and purpose:Intervertebral space infection after endoscopic spinal surgery is one of the most common complications of endoscopic spinal surgery.This study retrospectively analyzed the cases related to endoscopic spinal surgery in our hospital,in order to reduce the incidence of early postoperative surgical site infection after endoscopic spinal surgery,and analyzed numerous risk factors for early postoperative surgical site infection after endoscopic spinal surgery.Research method:Medical records of all patients undergoing spinal endoscopic surgery in our department from May 2015 to May 2020 were collected for retrospective study.In addition,relevant literatures were reviewed to summarize the common risk factors for early postoperative surgical site infection after endoscopic spinal surgery,such as age,gender,diabetes,BMI,operative time,long-term smoking history,endoscopic learning curve,surgical segment,surgical approach(lateral/posterior),secondary surgery,nutritional status,etc.First,univariate analysis was conducted to screen out positive risk factors,and then logistics regression analysis was used to analyze the positive risk factors.Research result:A total of more than 881 patients were included in this study,and all the data of the included patients were complete.Among them,20 patients developed early surgical site infection,including 12 male patients and 8 female patients.In this study,the incidence of surgical site infection was 2.27%.Univariate analysis showed that long operation time,endoscopic learning curve,BMI,age and long-term smoking history were positive risk factors for early infection after spinal endoscopy.There was no significant correlation between gender,diabetes mellitus,surgical level,surgical approach(lateral/posterior approach),secondary operation,nutritional status and early infection after spinal endoscopy.Multivariate Logistic regression analysis showed that age,BMI,smoking history,long operation time and endoscopic learning curve were the factors that increased the risk of SSIs after spinal endoscopy.Research conclusion:Long operation time,obesity,smoking history,age,and learning curve of endoscopists may increase the risk of early surgical site infection after spinal endoscopy.