1. Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
2. Department of Orthopaedic Surgery, Daegu Chamtntn Hospital, Daegu, Republic of Korea
3. Department of Orthopaedic Surgery, National Police Hospital, Seoul, Republic of Korea
4. Department of Orthopaedic Surgery, Seoul Medical Center, Seoul, Republic of Korea
5. Department of Orthopaedic Surgery, Wonkwang University School of Medicine, Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea
6. Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Republic of Korea