1. Department of Orthopaedic Surgery, University of Toyama, Toyama, Toyama 930‑0194, Japan
2. Department of Orthopaedic Surgery, Iiyama Red Cross Hospital, Iiyama, Nagano 389‑2295, Japan
3. Department of Human Science 1, University of Toyama, Toyama, Toyama 930‑0194, Japan