1. Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467‑8601, Japan
2. Department of Orthopedic Surgery, Kainan Hospital, Yatomi, Aichi 498‑8502, Japan
3. Department of Orthopedic Surgery, Nagoya City University East Medical Center, Nagoya, Aichi 464‑8547, Japan