1Recent attention and advances of the excess mortality after hip fracture in the elderlyZHANG Jian-zheng, WANG Xiao-wei, LIU Zhi, SUN Tian-shengEditorial481-4832Clinical effects of autogeneic iliac bone grafting combined with locking plate in the treatment of proximal humerus comminuted fractureLI Ming-chao, XIAO Rui, ZHANG Guang-ping, LI WeiTrauma484-4883Treatment of type C fractures of the distal humerus by triceps-sparing approachWU Gui-you, HONG Lei, LI Wei, ZHU Hong-wei, CHEN Guo-qiang, LI Wen-fengTrauma489-4934Effects of pedicle screw combined with bone cement vertebroplasty on the long-term efficacy in patients with osteoporotic thoracolumbar fractureGAO Gui-ying, XIA Qing-fu, HUANG Li-jun, ZHANG Yu-shuang, TIAN Xin-qiTrauma494-4985Operative method and efficacy in the treatment of complex acetabulum fractureHUANG Wan-qiang, CAO Juan-zhao, LI Wei, ZHANG Jun-changTrauma499-5026Minimally invasive treatment of the posterior pelvic ring fracture with locking plate fixationLI Di, CAO Lie-hu, WU Da-jiang, Wei Qiang, Ji FangTrauma503-5057Reconstruction treatment for unstable external wall type femoral trochanter fracture by PFNA-Ⅱ combined with lateral supporting plateZHU Xin-hong, HUANG Fei, YU Feng-bin, TAO De-gang, LAI Ai-ning, GUO LongTrauma506-5098Effects of fibular posterolateral approach and minimally invasive percutaneous plate osteosynthesis on the short-term prognosis of the type A3 distal tibiofibular fracturesMAO Feng, GUO Zhi, ZHENG Jun, XIN Zong-shan, LI Cheng-zhen, HU WeiTrauma510-5139Recent advances on the bone nonunion risk factorsLEI Ming-xing, ZHANG Li-cheng, LIN Feng, TANG Pei-fuReview514-51810Development history and research status of lumbar artificial disc replacementSUN Xiang-yao, LU Shi-bao, KONG ChaoReview518-52511Construction, mechanical and in vitro antibacterial effects of Ti-6Al-4V porous scaffold combined with vancomycin-loaded PMMA by three-dimensional printingHUANG Chen-yu, ZHOU Jin, YAO Qing-qiang, WANG Li-mingOriginal article526-53412A comparative statistical long-term survival analysis of modern distal femoral tumor megaprosthesesWANG Ji-chuan, YANG Yi, TANG Xiao-dong, YAN Tai-qiang, YANG Rong-li, GUO WeiOriginal article535-54113CT-guided coaxial percutaneous core needle biopsy in the diagnosis of pelvic lesionsQI Dian-wen, CHEN Hong-yi, GAO Li, ZHAO Ming, ZHOU Zhuang, GUO Chang-zhi, SUN Tao, HU Tong-yu, ZHANG Guo-chuanClinical research and practice542-54614Clinical application of 3D printing guild plate in tumor resection and reconstruction with prosthesis in patients with distal femoral osteosarcomaJI Yu-qing, WU Yu-xian, LI Jian-min, WANG Guang-hui, LI Yu-chun, CHENG Kun, JIANG Wen, LI Zhen-feng, YANG QiangClinical research and practice547-55115A comparative study of cardio-pulmonary function and blood gas analysis between early onset scoliosis from highattitudeandflatareasPAN Ai-xing, LIU Chang, HAI Yong, ZHANG Yang-pu, ZHANG Yao-shen, YANG Jin-caiClinical research and practice552-55616One cases report and literature review of calcaneus giant cell tumorXU Ming, ZHENG Kai, YU Xiu-chunCase report557-559 