Observational Study to Evaluate the Influence of Undercast Material Types on Skin Microbiome

Inclusion criteria

• Subject ≥ 18 years of age
• Patient is physically and mentally able to participate in this study
• Proper understanding of the Dutch language
• Signed informed consent
• Fractures to be treated with a short-arm cast without thumb inclusion for the period of 3 weeks (e.g. 2R3A1 = radial styloid avulsion, 2R3A2 = Simple radial fracture, 2U3A1 = Ulnar fracture of the base of the styloid process, 2U3A2= Simple distal ulna fracture, 2R3B1 = Intraarticular fracture of the styloid process of the radius (not displaced) or Triquetrum fracture (non AO classified))

Exclusion criteria

• Subject <18 years of age
• Pregnancy, breast feeding
• Participation in other clinical trials
• Patient is neither physically nor mentally able to participate in this study
• Non-intact skin in treatment area (including dermatological issues)
• Patients with impaired (e.g. Cortisone skin, extremely dry skin, parchment skin) or damaged skin with either a surgical wound or a traumatic wound
• Medical treatment prior casting which could influence the microbiome
• Known Blood Circulatory Diseases
• Known Lymphedema or any general disorder of the lymphatic system
• Known Osteoporosis
• Known Diabetes
• Knowing of one of the following illnesses that might require regular systemic medication: cancer, rheumatic disease
• Intolerability or documented allergies against cast materials
• Subjects with not "normal" (unusual) hygienic behavior
• Suspected drug addiction or alcohol abuse
• Patients diagnosed HIV-positive or with infectious hepatitis based on self-declaration by subjects