JOURNAL OF BONE AND JOINT SURGERY, INCORPORATED Investigation performed at the

One of the most serious complications following shoulder arthroplasty is periprosthetic infection. In-fection is associated with poor outcomes, increased cost, and technically difficult revision surgery. The prevalence of infec-tion following primary shoulder arthro-plasty has been reported to be between 0.7 % and 4%, and even higher following revision surgery1-6. Two recent, large ret-rospective reviews noted infection rates of 0.7 % (nineteen of 2540 cases)2 and 1.2% (thirty-two of 2588 cases)6. Bohsali and colleagues reported that deep peripros