Marc Maegele1,2
, Sven Gregor3
, Nedim Yuecel1
, Christian Simanski1
, Thomas Paffrath1
, Dieter Rixen1
, Markus M Heiss3
, Claudia Rudroff3
, Stefan Saad3
, Walter Perbix4
, Frank Wappler5
, Andreas Harzheim6
, Rosemarie Schwarz7
and Bertil Bouillon1 
1Department of Traumatology and Orthopedic Surgery, Cologne-Merheim Medical Center (CMMC), University of Witten/Herdecke, Ostmerheimerstrasse, 51109 Cologne, Germany
2Intensive Care Unit of the Department of Traumatology and Orthopedic Surgery, CMMC, University of Witten/Herdecke, Ostmerheimerstrasse, 51109 Cologne, Germany
3Department of Visceral Surgery, CMMC, University of Witten/Herdecke, Ostmerheimerstrasse, 51109 Cologne, Germany
4Department of Plastic and Reconstructive Surgery, CMMC, University of Witten/Herdecke, Ostmerheimerstrasse, 51109 Cologne, Germany
5Department of Anaesthesiology, CMMC, University of Witten/Herdecke, Ostmerheimerstrasse, 51109 Cologne, Germany
6Department of Radiology, CMMC, University of Witten/Herdecke, Ostmerheimerstrasse, 51109 Cologne, Germany
7Department of Microbiology, CMMC, University of Witten/Herdecke, Ostmerheimerstrasse, 51109 Cologne, Germany