1Total hip replacement for Crowel III and IV hip dislocation：prosthesis position and stabilityDing Liang-jia, Liu Xiao-min, Liu Ying-li4921-49262Legacy posterior stabilized prosthesis for valgus knee deformity：midterm follow upGuo Jiang, Zhang Zhong-jie, Xia Bo, Zhang Cai-dong, Fan Zhong-wei, Wu Tian-hao, Yang Hong-bin, Tan mei-yun4927-49323Non-limiting prosthetic knee replacement for children with knee dysfunction：prognosis and complicationsXu Feng-rui, Li Yu4933-49374Effect of intravenous tranexamic acid on hidden blood loss in total knee arthroplastyZhao Min-wei, Li Zi-jian, Zhang Ke, Zeng Lin, Fang Tuo4938-49435Tranexamic acid reduces blood loss in total knee arthroplasty：effectiveness and safetyCao Wan-jun, Zhu Shao-ling, Liu Xian-dong, Tang Cheng-jie, Zheng Jin-wen, Chen Xing-yu, Liu Ying, Xiao Peng4944-49486Different implants in the repair of Denis B thoracolumbar burst fracture：Cobb’s angle and height of anterior border of injured vertebral bodyXie Ping, Zhao Jian-guo, San You-li, Xiao Yu-chun, Lu Yang4949-49547Three-dimensional imaging guided vertebral pedicle screw placement：accuracy analysisShao He-yang, Meng Li-juan4955-49598Unilateral percutaneous vertebroplasty for osteoporotic vertebral compression fractures：less bone cement leakage and ideal recoveryWu Hong, Yuan Yuan, Liu Li-jin, Yan Liang, Xiong Li-wei, Zou Zhi-yuan, Min Zhi-hai4960-49669Effect of paraplegia walking orthosis on rehabilitation of the lower extremity in patients with thoracic spinal cord injuryYang Qin, Tang Dan, Zhao Yan-ling, Zhu Zheng-kun, Yan Xiu-sheng, Hu Fo-sheng, Xu Hong-hui4967-497210Bilateral and unilateral pedicle screw assisted interbody fusion for degenerative lumbar spondylolisthesis in the elderlyZhou Gang, Yang Xiao-hui, Huang Wei-min, Wang Cheng-wei, Zhang Yu-kun4973-497711Vertebroplasty for severe vertebral compression fractures：imaging evaluationShi Xin-le, Chen Yu-xiang, Liu Fei, Zhao Xiao-long4978-498212Different screw placement schemes in the treatment of middle-aged and young patients with displaced femoral neck fracture：reduction quality and femoral head necrosis rateLiu Fu-yao, Liu Cheng-wei, Wu Sheng-zhong4983-498813Modified proximal femoral nail anti-rotation II for repair of intertrochanteric fractures in the elderly：6-month follow-upLiao Zhen-chen, Su Wei-song4989-499314Gamma nailversus locking titanium plate fixation for unstable intertrochanteric fracture in the elderly：hip functionGao Jin-wei, Chang Jia-nan, Liang Wei-zhi4994-499915Proximal femoral nail anti-rotation for intertrochanteric fracture in aged patientsKang Ning, Yang Zi-quan, Zhang Chen, Feng Jun-yu5000-500316Fibular fixation for distal third tibia shaft fractures evidently improves tibial valgus and ankle functionShi Rui-ming, Feng Shi-qing5004-501017Anterolateral and medial approach fixation with compression plate and screw for middle and inferior humeral fractures：efficacy and safetyWu Wei, Wang Hai-bo5011-501518Influential factors for AO plastic double plate fixation in repair of senile distal humeral fracturesChen Ming-guang5016-502019Locking compression plate for Pilon fracture：fracture healing and ankle function during 6-month follow-upLi Hai, Zheng Ding-long, Hu Guo-quan, Li Shi-xiang, Pan Zu-de5021-502520Cannulated screw and Kirschner wire fixation for fracture dislocation of tarsometatarsal joint：anatomic reduction and ankle functional assessmentYang Zhao-xian, Zhao Han-ping5026-5030 