About the Authors

Yoshitaka Matsubayashi

ymatsubayashi-tky@umin.ac.jp

Affiliation Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan

Katsushi Takeshita

Affiliation Department of Orthopaedic Surgery, Jichi Medical University, Tochigi, Japan

Masahiko Sumitani

Affiliation Department of Pain and Palliative Medicine, The University of Tokyo, Tokyo, Japan

Yasushi Oshima

Affiliation Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan

Juichi Tonosu

Affiliation Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan

So Kato

Affiliation Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan

Junichi Ohya

Affiliation Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan

Takeshi Oichi

Affiliation Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan

Naoki Okamoto

Affiliation Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan

Sakae Tanaka

Affiliation Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KT MS. Performed the experiments: YM KT MS YO JT SK JO TO NO ST. Analyzed the data: YM KT MS. Contributed reagents/materials/analysis tools: YM. Wrote the paper: YM KT MS.