1Precision management of soft tissue sarcomaZHOU Yu-hong, NIU Xiao-huiEditorial321-3262Vascularized fibular epiphyseal transfer for reconstruction of bone defect after resection of primary proximal humerus tumor in childrenLI Yuan, XU Hai-rong, SHAN Hua-chao, HUANG Zhen, NIU Xiao-huiBone neoplasms327-3323Femoral Z osteotomy and rotation hip transposition with allograft for defect after pelvic tumor resectionXU Hai-rong, LI Yuan, YU Feng, NIU Xiao-huiBone neoplasms333-3384Clinical features of granular cell tumor of Soft TissueJIN Tao, LIU Wei-feng, HAO Lin, NIU Xiao-huiBone neoplasms339-3445Study on the miRNA-mRNA mutual regulation network and molecular mechanism of synovial tissue in patients with osteoarthritisXU Yang, WU Si-dong, QIAN Chen, ZHU Bin-jieBone neoplasms345-3516Comparison of different reconstruction methods in limb salvage surgery for diaphysial osteosarcomaZHANG Jun-liang, CHANG Meng-han, FAN Gen-tao, ZHOU Xing, SHI Xin, ZHOU Guang-xinClinical research and practice352-3577Comparison of clinical effects of different surgical strategies for giant cell tumor of bone around the knee jointWU Jun-jie, YU Xiu-chun, XU Ming, ZHENG Kai, CUI Hao-chengClinical research and practice358-3658The influence of periapical structure on upper instrumented vertebra fractures in adult degenerative scoliosisZHANG Tong-tong, SUN Xiang-yao, SUN Wen-zhi, HU Hai-liang, KONG Chao, LU Shi-baoOriginal article366-3739Effect of knee varus deformity on the ankle before and after total knee arthroplastyWU Zi-guang, ZHENG Wei-hong, HE Jun-yuan, PENG Jian-yong, HUANG Zhi-hua, TANG Jian-bangOriginal article374-37910Application of intraoperative 3D microscopy in the teaching of cervical spondylosisZHANG Yang, ZHENG Hua-yong, ZHANG Li-zhi, LI Ming-ye, ZHANG Zhi-chengOriginal article380-38311Advances on N6-methyladenosine modification and osteosarcomaWANG Wen-xue, TAN Li, TANG Bo-yi, CAI Lin, XIE Yuan-longReview384-38912Research progress of trace element selenium in osteoarthritisZHU Yi-fang, HUANG Yu-xia, LIANG Yi, WANG Lei, LI Min, GUO Li, CHEN LuReview390-39413A case report of severe delayed elimination in patients with osteosarcoma treated with high-dose methotrexateCHEN Jing-zhi, HU Yu-xian, LI Hai-liang, WANG Chun-nan, NIU Xiao-hui, XU Hai-rongCase report395-400 