Otto, Alexander https://orcid.org/0000-0002-6382-9532
Helal, Ahmed
Imhoff, Florian B.
Mehl, Julian
Herbst, Elmar
Achtnich, Andrea E.
Forkel, Philipp
Imhoff, Andreas B.
Schmitt, Andreas
Article History
Received: 12 March 2019
Accepted: 10 January 2020
First Online: 12 February 2020
Compliance with ethical standards
:
: A.B. Imhoff reports personal fees outside the submitted work from Arthrex, Naples, FL, USA, personal fees from Medi, Bayreuth, GER, and personal fees from Arthrosurface, Franklin, MA, USA. The remaining authors declare that they have no conflict of interest.
: This study has been approved by the institutional review board of the Technical University of Munich, Germany (IRB no. 455/16 S).