Ellwein, Alexander
Jaeger, Martin
Voigt, Christine
Katthagen, Jan Christoph
Schoepp, Christian
Frosch, Karl-Heinz
Lill, Helmut
Jensen, Gunnar
Article History
Received: 3 February 2020
Accepted: 16 April 2020
First Online: 14 May 2020
Compliance with ethical guidelines
:
: A. Ellwein: speaker’s honorarium: Arthrex GmbH; H. Lill: consultant: Arthrex GmbH; speaker’s honorarium: DePuySynthes; K.‑H. Frosch: consultant, research support, and speaker’s honorarium: Arthrex GmbH; J. C. Katthagen: research support and speaker’s honorarium: Arthrex GmbH; speaker’s honorarium: DePuySynthes. M. Jaeger, C. Voigt, C. Schoepp, and G. Jensen declare that they have no competing interests.
: The local ethics committee of each clinic approved the study protocol. All procedures performed in studies involving human participants or on human tissue were in accordance with the ethical standards of the institutional and/or national research committee and with the 1975 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all individual participants included in the study.