Denis Ehrl1, Holger C Erne2, Falter Erwin2. 1. Department of Plastic, Aesthetic and Hand Surgery, Kreisklinik Ebersberg, Pfarrer-Guggetzer-Str. 3, 85560 Ebersberg, Germany. Electronic address: Denis.Ehrl@klinik-ebe.de. 2. Department of Plastic, Aesthetic and Hand Surgery, Kreisklinik Ebersberg, Pfarrer-Guggetzer-Str. 3, 85560 Ebersberg, Germany.