1. Department of Emergency Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
2. Department of Orthopedics, The First People's Hospital of Foshan, Foshan, Guangdong 528000, P.R. China
3. Department of Orthopedics, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China