Xuefeng Zhou1,2, Jiazhao Yang1, Shiyuan Fang3. 1. Department of Traumatic Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, Anhui, China. 2. WanNan Medical College, Wuhu, 241002, Anhui, China. 3. Department of Traumatic Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, Anhui, China. fangshiyuan2008@126.com.