1. Department of Orthopedic Surgery, Shaanxi Provincial People's Hospital, Xi'an, China
2. School of Materials Science, Northwestern Polytechnical University, Xi'an, China
3. Department of Emergency Surgery, Xi'an People's Hospital, Xi'an, China
4. Department of Orthopedic Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
5. School of Clinical Medicine, Xi'an Medical University, Xi'an, China