About the Authors

Qing Xia

Contributed equally to this work with: Qing Xia, Zi-Xian Chen

Affiliation Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, P.R. China

Zi-Xian Chen

Contributed equally to this work with: Qing Xia, Zi-Xian Chen

Affiliation Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, P.R. China

Yi-Chao Wang

Affiliation Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, P.R. China

Yu-Shui Ma

Affiliation Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, P.R. China

Feng Zhang

Affiliation Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, P.R. China

Wu Che

Affiliation Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, P.R. China

Da Fu

superdafu@hotmail.com (DF); superwangxf@hotmail.com (XFW)

Affiliation Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, P.R. China

Xiao-Feng Wang

superdafu@hotmail.com (DF); superwangxf@hotmail.com (XFW)

Affiliation Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, P.R. China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DF XFW. Performed the experiments: QX ZXC YCW YSM FZ WC. Analyzed the data: QX ZXC YCW YSM FZ WC. Contributed reagents/materials/analysis tools: QX ZXC YCW YSM FZ WC. Wrote the paper: QX ZXC DF XFW.