1. Department of Orthopedics, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510150, P.R. China
2. Department of Orthopedics, The Third Clinical School of Guangzhou Medical University, Guangzhou, Guangdong 510150, P.R. China
3. Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
4. Intensive Care Unit, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510150, P.R. China