Institutional Review Board Statement
The study protocol was approved by the independent ethics committee of the Kobuna Orthopedic Clinic on 28 February 2022 (approval no. MK-2202-01) and registered in the University Hospital Medical Information Network Clinical Trials Registry (UMIN-CTR; UMIN000047137). The study was performed in compliance with ethical principles based on the Declaration of Helsinki and the Ethical Guidelines for Epidemiological Studies (Notification of Ministry of Education, Culture, Sports, Science and Technology and Ministry of Health, Labour and Welfare).