Objective To compare the anti-infection results between standard and long-term application of antibiotics in orthopedic surgery. Methods To retrospectively analyze the infection results of selected patients in orthopedic surgery between the years of 1997 and 2000. According to the application way of antibiotics, the patients were divided into 2 groups. In group A, antibiotics were usually not applied. If the operation is too complicated or there would be too many implants were used in the patients’ body, antibioctics would be applied intravenously within 30 min before the operation, the postoperative application of antibiotics were never beyond 36 hours. There were 921 patients in group A. In group B, except the application of antibiotics during the operation, a dose of antibiotics might be or might not be used one day before the surgery, and the postoperative application lasted for, at least, over 36 hours, or till the patients’ body temperature was under 37. 5 ℃. There were 1 213 patients in this
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