About the Authors

Marcel Betsch

betsch@ohsu.edu

Affiliation Oregon Health & Science University, Department of Orthopaedics and Rehabilitation, Portland, Oregon, United States of America

Michael Wild

Affiliation Klinikum Darmstadt, Department of Trauma and Orthopaedic Surgery, Darmstadt, Germany

Brian Johnstone

Affiliation Oregon Health & Science University, Department of Orthopaedics and Rehabilitation, Portland, Oregon, United States of America

Pascal Jungbluth

Affiliation University Hospital Duesseldorf, Department of Trauma and Hand Surgery, Duesseldorf, Germany

Mohssen Hakimi

Affiliation University Hospital Duesseldorf, Department of Trauma and Hand Surgery, Duesseldorf, Germany

Britta Kühlmann

Affiliation University Hospital Duesseldorf, Department of Trauma and Hand Surgery, Duesseldorf, Germany

Walter Rapp

Affiliation University Hospital Tuebingen, Department of Sports Medicine, Tuebingen, Germany

Competing Interests

Parts of this study were supported by a research grant from the company Diers International GmbH, Schlangenbad, Germany (www.diers.de). This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: MB MW BJ MH PJ BK WR. Performed the experiments: MB MW BJ MH PJ BK WR. Analyzed the data: MB MW BJ MH PJ BK WR. Contributed reagents/materials/analysis tools: MB MW BJ MH PJ BK WR. Wrote the paper: MB MW BJ MH PJ BK WR.