Purpose: Evidence for the use of prophylactic antibiotics in clean hand surgery is limited, yet surgeons continue to administer antibiotics to prevent postoperative infections. We sought to assess the effect of a program directed at reducing the use of antibiotic prophylaxis in carpal tunnel release surgery and elicit reasons for continued use.
Methods: A surgeon leader implemented a program between September 1, 2018 and September 30, 2019 to reduce antibiotic prophylaxis in clean hand surgeries in a hospital system of 10 medical centers. It consisted of (1) an evidence-based educational session for all participating orthopedic and hand surgeons during which the elimination of the use of antibiotics in clean hand surgeries was requested and (2) a year-long, monthly antibiotic use audit and feedback cycle using carpal tunnel release (CTR) as a proxy for clean hand surgery. The rate of antibiotic use in the year of the intervention was compared to the rate prior to the intervention. Multivariable regression was used to determine patient-related risk factors for receiving antibiotics. Participating surgeons completed a survey to elucidate factors that contributed to continued use.
Results: Antibiotic prophylaxis decreased from 1223/2379 (51%) in 2017-2018 to 531/2550 (21%) in 2018-2019. During the last month of evaluation, the rate decreased to 28/208 (14%). Logistic regression revealed a higher rate of antibiotic use during the period after the intervention among patients who had diabetes mellitus or who were operated upon by an older surgeon. The follow-up surgeon survey revealed a strong positive correlation between surgeon willingness to administer antibiotics and patient hemoglobin A1c and body mass index.
Conclusions: The rate of antibiotic use in carpal tunnel release decreased from 51% the year prior to 14% the final month of implementing a surgeon-led program to reduce antibiotic prophylaxis. Multiple barriers to the implementation of evidence-based practice were identified.
Type Of Study/level Of Evidence: Prognostic IV.
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