Received: 3 March 2020
Accepted: 19 November 2020
First Online: 26 November 2020
Ethics approval and consent to participate
: This study was carried out respecting the Declaration of Helsinki.IRB approval was obtained (number K-125-16), and informed consent was not applicable in retrospective research with existing data.
: All authors have read the manuscript and give consent for publication.
: Author HG states to have a consulting relationship with Zimmer-Biomet. All other authors: Each author certifies that he or she, or a member of his or her immediate family, has no funding or commercial associations (e.g., consultancies, stock ownership, equity interest, patent/licensing arrangements) that might pose a conflict of interest in connection with the submitted article.