Targeted monitoring of surgical site infections after total hip arthroplasty in Beijing in 2010

OBJECTIVE To explore the surgical site infection rate and the risk factors and estimate the economic loss due to surgical site infections indirectly by analyzing data from targeted monitoring of surgical site infections after total hip arthroplasty in 2010.METHODS A total of 714 patients who underwent total hip replacements from 39 hospitals in Beijing were monitored prospectively by Beijing Nosocomial Infection Surveillance System from Jan 2010 to Dec 2010.Univariate and multivariate logistic analysis of all related risk factors for surgical site infections were analyzed with statistical software SPSS 12.0.At the same time,the total hospital stay between surgical-site-infection group and non-surgical-site-infection group was compared by Mann-Whitney test.RESULTS The incidence of surgical site infection was 2.24% in the 714 patients undergoing the first total hip replacements;the multiple logistic regression analysis showed that the hospital ranking,transfer into ICU after operation,diabetes,and length of preoperative hospital stay were the risk factors for surgical site infections;the difference in the hospital stay between the infection group(the median 31.0d) and non-infection group(the median 16.9d) was statistically significant(P0.05).CONCLUSION The incidence of surgical site infections after total hip replacement in Beijing is similar to that in America and the European countries;the economic losses due to surgical site infections are increasingly emphasized,the targeted surveillance for SSI is helpful to reduce the economical loss endured by heath care system;the surgical site infections after total hip arthroplasty are under the combined effect of multiple factors,it is necessary to take comprehensive prevention measures to reduce its incidence.