1Exploration of compassionate use patterns in clinical trials of bone tumorsLYU Yu, WANG Chong-ren, SUN Wei, CAI Zheng-dong, HUA Ying-qiEditorial97-992Effectiveness of total femoral replacement in limb-salvage procedure in adolescent patients with femoral malignant tumorsCUI Lu-kuan, SUN Yang, JIN Tao, LIU Wei-fengBone neoplasms100-1063Analysis of the efficacy of microwave in situ inactivation combined with intralesional curettage in the treatment of atypical cartilaginous tumorsXU Ming, ZHENG Kai, YU Xiu-chunBone neoplasms107-1134Clinical report of 19 cases of chondroblastoma of the talusJIN Tao, SUN Yang, HAO Lin, LIU Wei-fengBone neoplasms114-1195Development and validation of a survival prediction model for non-metastatic primary osteosarcoma-a study based on the SEER databaseCAO Zheng-yi, Aizeizi·Aihaiti, WANG Jie, WANG Zhi-gangOriginal article120-1286Effects of cisplatin resistant osteosarcoma cell derived exosomes on proliferation and migration of osteosarcoma cells through delivery of miR-21-5pSUN Chao, MENG Chen-yang, ZHAO Jia-li, DOU Rui, FENG Wei, GUO Shi-bingOriginal article129-1457Surgical excision of rib mass in seven patientsMO An-sheng, CHEN Kai, LAI Xiao-yuOriginal article146-1548Prognostic model of osteosarcoma and to predict immune microenvironment based on genes related with neutrophil extracellular trapsHUANG Da-shuai, QI Yu-jiao, LI Dong-dong, LI Song-kaiClinical research and practice155-1649A case report of a rare aneurysmal-like bone cyst of the talusZHAO Tian-zuo, JIANG Chuan-yong, WEI Gang, DAI Shuang-lan, SHI BoCase report165-16710Ultrasound imaging findings of gluteal muscle contracture:a case reportWU Guo-hua, LI PingCase report168-16911Consensus on the Clinical Application of RANKL Therapy for Giant Cell Tumor of BoneChinese Society of Gerontology and Geriatrics Orthopedic Branch, Shandong Branch of the Anti-Cancer Association for Bone and Soft Tissue Tumors, YU Xiu-chunStandard/Protocol/Guideline170-18112Advances in diagnosis and treatment of granular cell tumor of the extremityLIU Jun-peng, WU Yue, YAO Xing-chen, DU Xin-ruReview182-18613Research progress of KLFs in osteosarcomaLI Tao, ZHANG Jin-yu, ZHOU Rui-qiReview187-192 