1. Department of Orthopaedic Surgery, Chosun University Hospital, 365, Pilmundae-ro, Dong-gu, Gwangju 61453, Republic of Korea
2. Department of Orthopaedic Surgery, Soonchunhyang University Hospital Bucheon, 170, Jomaru-ro, Wonmi-gu, Gyeonggi-do, Bucheon-si 14584, Republic of Korea