Randomized controlled trial of chlorhexidine wash versus benzoyl peroxide soap for home surgical preparation: neither is effective in removing Cutibacterium from the skin of shoulder arthroplasty patients.

Neither BPO soap nor chlorhexidine washes prior to shoulder surgery were effective in eliminating Cutibacterium from the skin surface or the incised dermal edge. Further study of means of reducing the Cutibacterium load of the skin at the time of shoulder arthroplasty is warranted.