1Cementless total hip arthroplasty：comparison of unilateral and bilateral effectsJiang Jin-song, Zhou Shu-quan, Qin Kai-bing, Feng Li-mei, Li Chuan-jie, Liang Mu-hua, Chen Xue-fei4101-41062Cable-Ready fast system combined with long-stem prosthesis for periprosthetic femoral fractures after total hip arthroplastyWu Chen-huan, Guo Xuan, Xue Wei, Cheng Zhong-hua4112-41173Bipolar femoral head replacement for unstable femoral intertrochanteric fracture in elderly patients：hip joint function and complicationsTan Zhang-yong, Wang Jian-liang, Guo Feng, Xu Ke-feng4118-41224One-stage artificial joint replacement for unstable intertrochanteric fracture in aged patients：6-month follow-up of hip joint functionCui Zhi-yong, Wang Xue, Guo Peng-chao, Wang Cheng-wei4123-41265Relevant factors of survival within 1 year of femoral head replacement in aged patientsZhang Dang-feng, Ma Wei, Ge Zhao-hui, Zhang Fei, Guo Chi-hua4127-41316Total knee arthroplasty for terminal knee disease：short-term follow-upLu Bin, Wang Jin-hua, Zhang Jian, Li Su-wan, Hu Wang-yang, Chen Xiao-qiang4132-41387Different analgesia in elderly patients with total knee arthroplasty：incidence of cognitive dysfunctionWu Jun4139-41438Continuous aspirin anticoagulation affects blood loss during total knee and hip arthroplastiesYou Jia, Fan Meng, Jiang Wen-xue4149-41529Hemiarthroplastyversus plate fixation for complex proximal humeral fracture in the elderly：shoulder joint functionZhang Bo, Wei Bing-dan, Gan Kun-ning, Cui Xiang-rong, Xiong Kai, Huang Ke4153-415710Anatomical characteristics of thoracic vertebrae for safe pedicle screw placement：comparison between normal adolescents and adolescent idiopathic scoliosis patientsCui Guan-yu, Tian Wei, Liu Bo, He Da, Sun Yu-qing, Zhao Jing-wei, Cheng Xiao-guang4158-416311Pedicle screw fixation combined with implantation of artificial bone composite for thoracolumbar fractures：vertebral height and Cobb angleWang Jian-hang, Sun Tao, Jiang Hai-ping4164-416812Vertebral pedicle screw fixationversus cross-segment pedicle screw fixation for thoracolumbar vertebral fracture and dislocationLiu Hua4169-417313Selective interbody fusion combined with pedicle screw fixation for degenerative lumbar scoliosis：spinal stabilityYin Cheng-hui, Fu Chen-xue, Ye Yong-ping, Xu Hao4174-417914Effectiveness of L5 pedicle screw insertion with a minimally invasive methodDeng Dong-hai, Yu Bin-sheng, Wang Wen-hao, Yu Li-min, Wen Jian, Ma Jun-xuan, Zhou Yi4180-418515Degenerative changes in adjacent segments after lumbar fixation and fusion：transforaminal endoscopic spine systemLi Jian-jiang, Chu Ge, Yang Tao, Huang Yi-fei, Wu Yan-sheng, Liu Yan-lu4186-419016Bilateral lumbar pedicle screw fixation for lumbar intervertebral disc herniation：recovery of the height of intervertebral discsXu De-li, Lin Hao, Tao Hai-ying4191-419617Bone cement and bone grafting in nail path to strengthen dynamic hip screw fixation for senile osteoporotic intertrochanteric fractureLin Zhou-sheng, Sun Hong-tao, Xia Xiong-zhi, Jiang Cheng, Li Fei-meng4197-420118Dynamic hip screw knife systemversus spiral blade anti-rotation intramedullary nail in the treatment of unstable intertrochanteric fracturesLin Yong, Lin Xue-ping, Ruan Zhang-tao4202-420719Proximal femur locking compression plate fixation for senile stable intertrochanteric femoral fractures：outcomes and complicationsWang Kan-shi, Zhao Lei, Zhou Chao4208-421220Prognosis of locking plateversus ordinary steel plate fixation for proximal humeral fracturesBai Jian-zhong, Hou Bo, Shi Hui-feng, Yang Wei, Xu Gang, Liang Chao-ge4213-4217 