This is a prospective, multicenter, randomized controlled study. Patients were evaluated through inclusion and exclusion criteria. Patients who meet the conditions will sign an informed consent form. After DAIR surgery, they will be treated with intravenous antibiotics for 1-2 weeks and then randomly assigned to one of the following two groups: Antibiotic treatment group: All enrolled patients will be treated with antibiotics (fluoroquinolones or linezolid) for 3 months based on the results of microbial culture and drug sensitivity after surgery. Rifampicin combined with antibiotics treatment group: In addition to the above-mentioned antibiotics, all enrolled patients were treated with rifampicin for 3 months after the operation. The infection control rates of the two groups were judged through at least 2-year follow-up after the operation.The study will follow the Consolidated Standards of Reporting Trials (CONSORT) guidelines for reporting parallel group randomised trials. Ethical approval will be obtained from each institution. Written informed consent will be obtained from all participants to ensure their voluntary participation and understanding of the study.
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The clearance rate of infection, calculated by the formula
Timeframe: two years postoperatively
Adverse events related to PJI
Timeframe: Two years postoperatively