1. Department of Orthopaedics, the Affiliated Southeast Hospital of Xiamen University, the 909th Hospital of PLA, Orthopaedic Center of People's Liberation Army, Zhangzhou, China
2. Department of Orthopedic and Trauma Surgery, University Hospital Bonn, Germany
3. Department of Orthopaedics, Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, China
4. Department of Ultrasound, the Affiliated Southeast Hospital of Xiamen University, the 909th Hospital of PLA, Zhangzhou, China