Received: 23 September 2020
Accepted: 11 March 2021
First Online: 23 March 2021
: This retrospective study was approved by the Institutional Review Board of Asahikawa Medical University with reference number AMU19243, and informed consent was waived by the IRB due to the retrospective nature of the study.
: Not applicable.
: Paid presentation for Zimmer (HT).