Ilker Uçkay1, Anne Lübbeke2, Benedikt Huttner3. 1. Orthopaedic Surgery Service Service of Infectious Diseases Infection Control Program, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland. 2. Orthopaedic Surgery Service. 3. Service of Infectious Diseases Infection Control Program, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland.