Pathogens and influencing factors of surgical site infection in department of orthopedics
OBJECTIVE To analyze the related factors and pathogenic bacteria distribution of orthopaedic surgical site infection(SSI).METHODS A total of 96 patients with postoperative surgical site infection who underwent or-thopaedic surgery in Taihe Hospital,from Jun 2021 to Jun 2023 were selected as the case group.Among the pa-tients who underwent orthopaedic surgery and did not have postoperative surgical site infection in this hospital,384 cases were randomly selected as the control group according to the occurrence month 1∶4.The infection situ-ation and pathogenic bacteria distribution were analyzed,and the influencing factors and pathogenic bacteria of or-thopaedic patients with surgical site infection were analyzed.RESULTS There were 96 cases with SSI and the infec-tion rate was 0.97％.Staphylococcus aureus(18.89％),Enterobacter cloacae(11.11％)and Escherichia coli(10.00％)were the top three pathogens of surgical site infection in orthopaedic patients.Multivariate logistic re-gression analysis showed whether the duration of operation was longer than 2 hours(OR=2.674,95％CI:1.502-4.762),Whether there was bleeding during the operation(OR=2.793,95％CI:1.104-7.062),and the number of drainage days(OR=1.157,95％CI:1.044-1.283)was an independent risk factor for postoperative surgical site in-fection in orthopedic surgery patients,and the length of hospitalization before surgery(OR=0.878,95％CI:0.781-0.988)was a protective factor for postoperative surgical site infection in orthopedic surgery patients.CONCLUSION The pathogenic bacteria characteristics of orthopaedic surgical site infection are clear,the duration of operation,the number of days in hospital before surgery,whether blood transfusion,drainage days are the in-fluencing factors.Comprehensive prevention and treatment measures should be taken to reduce the infection rate of orthopedic surgical site.
Orthopedic surgerySurgical site infectionPostoperative infectionInfluencing factorCase-control studyPathogenic bacteria
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