1. Department of Orthopaedic Surgery, Emergency Center of Trauma, Key Laboratory of Orthopaedic Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province; Third Hospital of Hebei Medical University; Shijiazhuang China
2. International Research Center for Implantable and Interventional Medical Devices, School of Biological Science and Medical Engineering; Beihang University; Beijing China