1. Department of Mechanical Engineering, Sejong University, Seoul, The Republic of Korea
2. Central Research and Development Center, Corentec Co. Ltd., Seoul, The Republic of Korea
3. Medical Device Development Center, OSONG Medical Innovation Foundation, Cheongju-si, The Republic of Korea
4. Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, The Republic of Korea
5. Department of Orthopaedic Surgery, Mediplex Sejong Hospital, Incheon, The Republic of Korea
6. Department of Orthopaedic Surgery, Seoul National University College of Medicine, Bundang Hospital, Seongnam, The Republic of Korea