Optimization of Skin Preparation to Reduce Cutibacterium Acnes Colonization in Superficial and Deep Samples During Prosthetic Shoulder Surgery in Male Patients

Inclusion criteria

• Male patients, Adult patients,
• Patient without a history of surgical intervention on the operated shoulder,
• Patient managed for glenohumeral, partial (cup or anatomical hemi- arthroplasty) or total (anatomical or inverted) glenohumeral arthroplasty placement for primary osteoarthritis, or secondary to necrosis, massive rotator cuff tear or old fracture.
• Patients affiliated to a social security system
• Patients who have given their informed and written consent

Exclusion criteria

• Patient with arthroplasty for resumption of previous shoulder surgery or failure of arthroplasty
• Patient with arthroplasty for acute trauma
• Patient on immunosuppressantsimmunosuppressive drugs
• Patient with inflammatory rheumatism
• Patient with progressive cancer pathology
• Allergies or intolerances concerning the modalities of selected skin preparations (Povidone Iodine, hypersensitivity to benzoyl peroxide)
• Dermatological pathologies in the area to be treated
• Acne treatment in the area to be treated within four weeks before inclusion
• Patient without possible help from a third party for the application of Cutacnyl® 5% in the intervention group if necessary
• Major under guardianship
• Patient under the protection of justice
• Patient not covered by social security