Propionibacterium acnes is the most common pathogen identified from a surgical site
infection in the shoulder. Standard skin preps do not prevent this type of infection.
Patients will undergo either a chlorhexidine or benzoyl peroxide prep in days leading up to
surgery. Bacterial burden will be determined at the time of surgery.
- Age >18
- Indicated for shoulder surgery
- History of previous shoulder infection
- Allergy to Chlorhexidine or benzoyl peroxide
- Current use of anti-acne medicine around the shoulder
- Patient is pregnant or concerned about pregnancy