1. Joint Reconstruction Center, Department of Orthopaedic Surgery, Yonsei Sarang Hospital; 478-3, Bangbae-dong Seocho-gu Seoul Republic of Korea
2. Department of Mechanical Engineering; Yonsei University; 50 Yonsei-ro Seodaemun-gu Seoul Republic of Korea
3. Joint Reconstruction Center; Department of Orthopaedic Surgery; Yonsei Sarang Hospital; 49-3 Yeokgok-dong Wonmi-gu Bucheon 420-100 Korea
4. Spine Center and Department of Orthopaedic Surgery; Seoul National University College of Medicine and Seoul National University Bundang Hospital; Sung-Nam Korea