Yukio Kawakami, ^○Takanao Kurozumi, Yoshifumi Hota, Yuya Kajiki, Mai Nagashio, Hidenori Kondo, Shiro Moritani, Junya Imatani, Masanichi Hayashi (Okayama Saiseikai General Hospital)

^○Kenji Yasui¹, Kazuhiro Maeda¹, Ken Okazaki¹, Tomohiko Deguchi², Katsuaki Kanbe², Nobuhisa Shinozaki³, Yuya Tanaka⁴, Munehiro Naruo⁵ (1.Department of Orthopedics, Tokyo Women's Medical University, 2.Department of Orthopedics, Tokyo Women's Medical University, East Medi, 3.Department of Orthopedics, Tokyo-Kita Medical Center, 4.Department of Orthopedics, Ushiku Aiwa General Hospital, 5.Department of Orthopedics, Tomei Atsugi Hospital)

^○Manami Katsumata¹, Kenji Yasui², Kazuhiro Maeda², Ken Okazaki², Tomohiko Deguchi³, Katsuaki Kanbe³, Nobuhisa Shinozaki⁴, Yuya Tanaka⁵, Koyo Edashige⁶, Naoya Makiyama⁶ (1.Heiwadai Hospital, 2.Tokyo Women's Medical University, 3.Tokyo Women's Medical University, East Medical Center, 4.Tokyo-Kita Medical Center, 5.Ushiku Aiwa General Hospital, 6.Karuizawa Hospital)

^○Teruaki Izaki¹, Yozo Shibata², Satoshi Miyake¹, Terufumi Shibata¹, Tomohiko Minamikawa², Takuaki Yamamoto¹ (1.Fukuoka University, 2.Fukuoka University Chikushi Hospital)

^○Hiroyasu Ikegami, Takanori Shintaku, Shu Yoshizawa, Takeo Mori, Hideaki Ishii, Misato Sakamoto, Kayo Yamada, Takahide Sunakawa, Yoshiro Musha, Takao Kaneko (Department of Orthopaedic Surgery, Toho University)

^○Kazumasa Abe¹, Hiroshi Hashiguchi¹, Satishi Iwashita², Minoru Yoneda², Shinro Takai² (1.Nippon Medical School / Chiba Hokusoh Hospital, 2.Nippon Medical School Hospital)

^○Kazuyuki Watanabe¹, Masaaki Ito², Naohiko Higuchi³, Hirotaka Kawano² (1.Fukaya Central Hospital, 2.Teikyo University Hospital, 3.Takai Hospital)

^○Yasuhiro Mizuki, Taiki Uchimura (Department of Orthopaedics, Sasebo Kyosai Hospital)

^○Kaori Sugioka¹, Nobuyasu Ochiai², Kouji Akimoto², Daisuke Nojima² (1.Narashino Daiichi Hospital, 2.Department of Orthopedic Surgery, Chiba University Graduate School of Medicine)

^○Kenneth Cutbush, Noel Peter, Jillian Lee (Brisbane Private Hospital)