1. Department of Orthopedic Surgery, School of Medicine, Kyungpook National University, Daegu 41944, Republic of Korea
2. Department of Orthopedic Surgery, School of Medicine, Catholic University, Daegu 38430, Republic of Korea
3. Department of Orthopedic Surgery, Keimyung University Dongsan Hospital, Keimyung University School of Medicine, Daegu 42601, Republic of Korea
4. Department of Orthopedic Surgery, Konkuk University Medical Center, Seoul 05030, Republic of Korea