Kocaoğlu, Hakan http://orcid.org/0000-0002-1421-3555
Hennes, Fabian
Abdelaziz, Hussein
Neufeld, Michael E.
Gehrke, Thorsten
Citak, Mustafa
Article History
Received: 7 May 2021
Accepted: 16 December 2021
First Online: 23 January 2022
Declarations
:
: Author Hakan Kocaoğlu, Fabian Hennes, Hussein Abdelaziz and Michael Neufeld declare they have no financial interests. Author Mustafa Çıtak has received speaker and consultant honoraria from Waldemar Link, Hamburg, Germany. Author Thorsten Gehrke has received speaker honorarium and paid consultant fee from Waldemar Link, Hamburg, Germany; Zimmer Biomet, Warsaw, USA; Ceramtec, Pochingen, Germany and Heraus, Hanau, Germany.
: We hereby confirm that all procedures performed in studies involving human participants were in accordance with the ethical standards of the regional ethics committee (Ethik-Kommission der Arztekammer Hamburg, Deutschland; PV 5647; 2019) and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.