1. Department of Orthopedic Surgery The Second Affiliated Hospital Zhejiang University School of Medicine Orthopedics Research Institute of Zhejiang University Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province Clinical Research Center of Motor System Disease of Zhejiang Province Hangzhou Zhejiang Province 310000 P. R. China
2. School of Materials Science and Engineering Zhejiang University Hangzhou 310027 P. R. China
3. School of Material Science and Engineering University of New South Wales Sydney 2052 Australia
4. The First Affiliated Hospital Zhejiang University School of Medicine Hangzhou 310003 P. R. China
5. Department of Orthopedics The First Affiliated Hospital Zhengzhou University Zhengzhou 450001 P. R. China