Received: 6 May 2020
Accepted: 14 August 2020
First Online: 31 August 2020
Ethics approval and consent to participate
: All procedures performed in this study involving human participants were in accordance with the ethical standards of the Institutional and/or National Research Committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all individual participants included in the study.
: Not applicable
: DSB has a consultancy agreement with DePuy. PJCS has a consultancy agreement with Zimmer. All the other authors declare no conflict of interest.