1. Department of Orthopedics Trauma Surgery, Medical Faculty of the Heinrich Heine University, 40225 Düsseldorf, Germany
2. Plasma Interface Physics, Ruhr University Bochum, 44801 Bochum, Germany
3. Experimental Physics II, Ruhr University Bochum, 44801 Bochum, Germany
4. Institute for Electrical Engineering and Plasma Technology, Ruhr University Bochum, 44801 Bochum, Germany
5. Institute for Research in Operative Medicine (IFOM), Witten/Herdecke University, 51109 Cologne, Germany