1. Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
2. Department of Joint Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
3. Department of Joint Surgery, Weifang People’s Hospital, Weifang, Shandong, P.R. China