About the Authors

Ryo Kadota

Affiliation Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, Chuo-Ku, Chiba, Japan

Masao Koda

masaokod@gmail.com

Affiliation Department of Orthopaedic Surgery, Chiba Aoba Municipal Hospital, Chuo-Ku, Chiba, Japan

Junko Kawabe

Affiliation Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, Chuo-Ku, Chiba, Japan

Masayuki Hashimoto

Affiliation Department of Orthopaedic Surgery, Chiba Medical Center, Chuo-Ku, Chiba, Japan

Yutaka Nishio

Affiliation Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, Chuo-Ku, Chiba, Japan

Chikato Mannoji

Affiliation Department of Orthopaedic Surgery, Chiba Aoba Municipal Hospital, Chuo-Ku, Chiba, Japan

Tomohiro Miyashita

Affiliation Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, Chuo-Ku, Chiba, Japan

Takeo Furuya

Affiliation Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, Chuo-Ku, Chiba, Japan

Akihiko Okawa

Affiliation Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, Chuo-Ku, Chiba, Japan

Kazuhisa Takahashi

Affiliation Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, Chuo-Ku, Chiba, Japan

Masashi Yamazaki

Affiliation Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, Chuo-Ku, Chiba, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RK MK KT MY. Performed the experiments: RK MK JK MH YN CM TM TF AO. Analyzed the data: RK MK KT MY. Contributed reagents/materials/analysis tools: RK MK JK MH YN CM. Wrote the paper: RK MK MY.