1. Department
of Orthopedic Surgery, Shanghai Tenth People’s Hospital, Tongji University, Shanghai 200072, China
2. Department
of Orthopedic Surgery, Shanghai East Hospital, Tongji University, Shanghai 200072, China
3. State
Key Laboratory of High Performance Ceramics and Superfine Microstructure,
Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China