Affiliation: | 1. Department of Spine Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, China Jingchuang Sun, Fan Zhang and Xi Luo contributed equally to this article and should be listed as co-first authors.;2. Department of Spine Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, China;3. Department of Orthopedic Surgery, Jinling Hospital, Nanjing University, Nanjing, China |