1 Department of Trauma, Hand and Reconstructive Surgery, Westphalian Wilhelms University Muenster, Albert-Schweitzer-Campus 1, 48149, Muenster, Germany. michael.raschke@ukmuenster.de.
2 Department of Trauma, Hand and Reconstructive Surgery, Westphalian Wilhelms University Muenster, Albert-Schweitzer-Campus 1, 48149, Muenster, Germany.