Abstract: ［Abstract］Objective〖HTSS〗To investigate the risk factors for surgical site infection(SSI) after distal radius fracture, in order to provide evidence to prevent such type of complication.
 〖WTHZ〗Methods〖HTSS〗Retrospective review of 627 cases of intraarticular fractures of distal radius surgically treated in department of hand surgery and orthopaedic trauma were performed. The perioperative data and biochemical test results were obtained by consulting the electronic medical record system, imaging system and test reports. Patients were divided into two groups according to criteria defined by the Centers for Disease Control(CDC) for infection: the infected group and the non-infected group. Univariate and multivariate logistic regression analyses were used to investigate the risk factors associated with the SSI.
 〖WTHZ〗Results〖HTSS〗During the observational period, 42 cases of SSIs were found, and the incidence was 6.7%. According to the results of univariate analysis, statistical difference was found between two groups(P＜0.05 or P＜0.01) in term of patient age, body mass index, smoking status, diabetes, rheumatic immune disease, AO type, fracture type (closed fractures and Gustilo classification), surgical timing, American Society of Anesthesiologists(ASA), operation time, preoperative hemoglobin and albumin level. Multivariate Logistics regression analysis showed that independent risk factors of postoperative SSI were: smoking, open fracture of Gustilo Ⅱ and Ⅲ type, operation time more than 130 minutes and lower preoperative albumin level(< 35 g/L).
 〖WTHZ〗Conclusion〖HTSS〗Identification of these factors is of great significance in assessing the risk of SSI. We suggest that patients should quit smoking in time, rationally plan the surgical procedure to reduce the operation time, and timely supplement nutrition to reduce the risk of SSI.

Key words: radius fractures, surgical site infection, risk factors