1. School of Mechanical Engineering, Henan Polytechnic University, Jiaozuo 454003, China
2. Department of Orthopedics, Shanghai 10th People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
3. Department of Orthopedics, Zhenjiang Jinshan Hospital, Zhenjiang 212001, China
4. School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China