Florian S Frueh1, Kai Megerle2, Shai Luria3, Simon Farnebo4. 1. 1 Division of Plastic Surgery and Hand Surgery, University Hospital Zürich, Zürich, Switzerland. 2. 2 Department of Plastic Surgery and Hand Surgery, Technische Universität München, München, Germany. 3. 3 Department of Orthopedic Surgery, Hadassah-Hebrew University Medical Center, Jerusalem, Israel. 4. 4 Department of Plastic Surgery, Hand Surgery, and Burns, Linköping University, Linköping, Sweden.