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Introduction: The role of prophylactic antibiotics in reducing the incidence of infection following hip and knee arthroplasty is well established. The British Orthopaedic Association (BOA) published best practice guidance on the use of prophylactic antibiotics in hip and knee arthroplasty. The guidance stated that all patients should receive prophylactic antibiotics at induction of anaesthesia and that each unit should have a locally agreed policy with advice from microbiologist. The aim of this audit was to compare the practice in our unit with the BOA guidance and implement necessary changes.
Patients and Methods: A prospective audit was conducted over a one month period in 2007 and included all patients undergoing elective primary hip and knee replacements. A similar re-audit was conducted over one month period in 2008 after the initial audit recommendations were implemented.
Results: Forty patients (40) were included in the initial audit. All patients received prophylactic antibiotics at induction but the choice, dose and duration of administration of antibiotics varied widely among surgeons in the unit. After discussion with the local microbiologist, we recommended a departmental policy for prophylactic antibiotics. The policy recommended a single dose of Cefuroxime and Gentamycin for standard cases and a single dose of Teicoplanin and Gentamycin for high-MRSA risk cases. A re-audit was conducted after the new policy was agreed. The re-audit included 33 patients. All patients received prophylactic antibiotics at induction. The choice of antibiotics was concordant with the policy in 79% of cases and duration of administration was appropriate in 85% of cases. Overall, the policy was adhered to in 22 cases (67 %).
Discussion &
Conclusions: The closed audit cycle resulted in improvement of our practice but the compliance rate with the new policy was lower than expected. Although it is the primary responsibility of the operating surgeon to ensure the appropriate prophylactic antibiotics are administered, more awareness of other team members is necessary to improve the compliance rate with the new policy.