1. Department of Orthopaedics Tianjin Hospital, Tianjin University Tianjin China
2. Department of Radiology Tianjin Hospital, Tianjin University Tianjin China
3. Tianjin Key Laboratory of the Design and Intelligent Control of the Advanced Mechanical System Tianjin University of Technology Tianjin China
4. National Demonstration Center for Experimental Mechanical and Electrical Engineering Education Tianjin University of Technology Tianjin China