[1] Saitama Medical University,Department of Orthopaedic Surgery, Saitama Medical Center
[2] Musashino Red Cross Hospital,Department of Orthopaedic Surgery
[3] Saitama Medical University,Information Technology Center
[4] Gunma University Graduate School of Medicine,Department of Orthopaedic Surgery
[5] Saitama Rehabilitation Center,Department of Orthopaedic Surgery
[6] Yokohama Rosai Hospital,Department of Orthopaedic Surgery
[7] Iwai Orthopaedic Medical Hospital,Department of Orthopaedic Surgery
[8] University of Tokyo,Department of Orthopaedic Surgery, Faculty of Medicine
[9] Saitama Red Cross Hospital,Department of Orthopaedic Surgery
[10] Japanese Red Cross Medical Center,Department of Spine and Orthopaedic Surgery
[11] Tokyo Metropolitan Komagome Hospital,Department of Orthopaedic Surgery and Musculoskeletal Oncology
[12] Sanraku Hospital,Department of Orthopaedic Surgery