The use of prophylactic antibiotics in reduction mammoplasty has been
random and its efficacy unproven. This study reviewed 106 consecutive
inferior pedicle technique reduction mammoplasties. Two groups were id
entified; 47 patients received prophylactic antibiotics and 59 patient
s did not. The decision of who received prophylactic antibiotics was r
andom based on resident rotation and resident preoperative orders. The
demographics were equal between the antibiotic group and the control
group. The wound infection rate and the rate of delayed healing were e
xamined in both groups. There were no statistically significant differ
ences in the infection rate or the rate of delayed wound healing in ei
ther the antibiotic group or the control group. Individual risk factor
s were also studied in each group. These risk factors included obesity
, older age, smoking history, and large reductions. The use of prophyl
actic antibiotics did not reduce the infection rate in any of these hi
gh-risk groups. Comparing the individual risk factors for the remainde
r of the patient population showed that the infection rate was higher
in obese patients but was unaffected by prophylactic antibiotics. Dela
yed healing was also higher in larger reductions but also was unaffect
ed by the use of prophylactic antibiotics. We conclude that the use of
prophylactic antibiotics in reduction mammoplasty is not efficacious
in reducing the rate of wound infection or delayed healing.