1Masquelet technique combined with internal fixation in the treatment of infected subtrochanteric nonunion of femur by stagesXIE Yun-fei, LI Meng, LU Xiao-tian, SU Yi-tong, LUO Xiang-liTrauma193-1992Membrane induction combined with bilateral bone transport for treatment of large-segment infected bone defect in tibiaHU Bi-jun, HAN Pei, ZUO Zhen-hua, XU Zheng-yuTrauma200-2063Limb salvage strategies for severe lower leg trauma complicated with necrotic infectionLIU Kun, LIU Lin-lin, MA Bing-tao, LI Tang-bo, QIAO Lin, ZHANG Shu-ming, XU Jian-qiangTrauma207-2134Risk and benefit evaluation of balloon dilation combined with prying reduction and bone grafting for thoracolumbar fractures based on multi-criteria decisionWEI Ran, HE Yin-chuan, YAO Xue-ying, CAO Peng, LIU Ming-hao, XU Jun-lingOriginal article214-2215Analysis of risk factors for recurrence after percutaneous lumbar discectomy for lumbar disc herniationZHU Lei, WU Rui, LIU Jie, ZHENG Tian-you, LENG ZhenOriginal article222-2276To compare the efficacy of Pie-crusting assisted arthroscopy and open surgery in the treatment of gluteal muscle contracture(degree Ⅲ)in childrenZHANG Jian, WANG Bin, ZHAO Hong-bo, WANG Yue-guang, ZHOU Hong-yan, SUN Ming-hong, ZHANG De-xinOriginal article228-2327Comparative study on the clinical efficacy of retrograde femoral intramedullary nail plus lateral locking plate and medial-lateral double plate in the treatment of AO/OTA 33C distal femoral fractureXU Wei-zhen, LIU Hui, ZHANG Jin-hui, XIONG Yuan-fei, ZHANG Jian-ping, WU JinOriginal article233-2418Effects of different surgical approaches on ankle function,inflammation and stress state in patients with AO type C pilon fracturesWANG Hong-chao, ZHANG Ming-lun, GUAN De-qiang, CHEN Zhan-wei, SUN Tian-ci, CHEN JianOriginal article242-2479Effects of the distance between the center of tantalum rod implantation and osteonecrosis region on femoral head necrosis surgery outcomesZHU Wen-ming, DI Teng-fei, YU Bao-zhan, ZHANG HaoClinical research and practice248-25310Clinical efficacy of ERAS in patients with human immunodeficiency virus infection and femoral head necrosis undergoing total hip arthroplastyYiliyaer Batuer, MA Liang, SONG Yu-xia, Dilixiati Abulizi, TANG Wei, GU Fu-dingClinical research and practice254-25911Analysis of the effects of progressive dynamic balance training on gait balance,function and quality of life in total knee arthroplasty patientsWEI Jing-jing, YU Xin-yan, RUAN Ren-zhi, LI Yan, LIU Ling-junClinical research and practice260-26412Complete dislocation and fracture of L1-2 vertebral body caused by trauma:one case reportYANG Kang-yan, DONG Long-jia, CHEN Kun-Hao, TIAN Ying-ying, YANG Shu, CHEN Xiang-junCase report265-26713Research progress on the application of big data analysis in osteoporosisJIANG Huang-ling, SUI Fu-hui, WANG Jia-min, SU Xiao-qiang, ZHAO JingReview268-27514Current status of 3D printing in the surgical treatment of developmental dysplasia of the hipTUO Chen-long, GU Yu-biao, YU Peng-fei, YANG Yang, SUN Xiao-jun, WANG Hua-ming, ZHANG Lei, ZHANG De-hong, WANG Ya-qiReview276-28115Current situation and prospect of 3D printing-assisted total hip replacement in the treatment of Crowe Ⅲ-Ⅳ adult hip dysplasiaSHI Yan-ji, GU Yu-biao, LEI Ning-bo, CHANG Rui-long, ZHANG LeiReview282-288 