1. Department of Orthopaedic Surgery, Chung-Ang University Gwangmyeong Hospital, Gwangmyeong, Republic of Korea
2. Department of Radiology, Hospital of Chung-Ang University of Medicine, Seoul, Republic of Korea
3. Department of Orthopaedic Surgery, Ilsan-Paik Hospital, Inje University College of Medicine, Goyang, Republic of Korea
4. Department of Orthopaedic Surgery, Hospital of Chung-Ang University of Medicine, Seoul, Republic of Korea