1. Department of Orthopedic Surgery, Graduate School of Medicine, Nagoya University, Nagoya, Japan
2. Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, Ishikawa, Japan
3. Department of Orthopedics Surgery, Toyama Prefectural Central Hospital, Toyama, Japan
4. Department of Orthopaedic Surgery, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
5. Department of Orthopaedic Surgery, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan
6. Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan
7. Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
8. Department of Orthopaedics and Rehabilitation Medicine, Faculty of Medical Sciences University of Fukui, Fukui, Japan
9. Department of Orthopaedic Surgery, Hamamatsu University School of Medicine, Shizuoka, Japan
10. Department of Orthopaedic Surgery, Nagoya Kyoritsu Hospital, Aichi, Japan
11. Department of Orthopaedic Surgery, Sapporo Medical University, Sapporo, Japan
12. Department of Orthopaedic Surgery, Matsuda Orthopedic Memorial Hospital, Sapporo, Japan
13. Department of Orthopaedic Surgery, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
14. Department of Orthopaedic Surgery, Shinshu University School of Medicine, Nagano, Japan
15. Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
16. Department of Orthopaedics, Saiseikai Shiga Hospital, Shiga, Japan
17. Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Miyagi, Japan
18. Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
19. Department of Orthopaedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
20. Department of Orthopaedic Surgery, Nihon University Hospital, Tokyo, Japan
21. Department of Orthopaedic Surgery, Nihon University School of Medicine, Tokyo, Japan
22. Department of Orthopedics, Traumatology and Spine Surgery, Kawasaki Medical School, Okayama, Japan
23. Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
24. Department of Orthopaedic Surgery, Kitasato University School of Medicine, Kanagawa, Japan
25. Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
26. Department of Orthopaedic Surgery, Gunma University, Graduate School of Medicine, Gunma, Japan
27. Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Mie, Japan
28. Department of Orthopaedic Surgery, Kochi Medical School, Kochi University, Nankoku, Japan
29. Department of Orthopaedic Surgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
30. Department of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare, Chiba, Japan
31. Department of Orthopaedic Surgery, International University of Health and Welfare Narita Hospital, Chiba, Japan
32. Department of Orthopaedic Surgery and Spine and Spinal Cord Center, International University of Health and Welfare Mita Hospital, Tokyo, Japan
33. Department of Orthopaedic Surgery, The University of Tokyo Hospital, Tokyo, Japan
34. Department of Orthopaedic Surgery, Tokyo Medical and Dental University, Tokyo, Japan
35. Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
36. Department of Orthopedics Surgery, Surgical Science, Tokai University School of Medicine, Kanagawa, Japan
37. Department of Orthopaedic Surgery, University of Yamanashi, Yamanashi, Japan
38. Department of Orthopaedic Surgery, Faculty of Medicine, University of Toyama, Toyama, Japan
39. Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
40. Department of Orthopaedic Surgery, Kansai Medical University Hospital, Osaka, Japan
41. Department of Orthopaedic Surgery, Faculty of Medicine, Oita University, Oita, Japan