1Total knee arthroplasty for knee varus deformity:follow-up evaluation of femorotibial angle and range of motionLi Guang-wei, Wang Hong-jun, Sun Xiao-zhi, Chen Lin-bin, Gao Yu-liang, Bai Zhong-xu, Cheng Xin-sheng1313-13202Outcomes of one-stage versus two-stage total knee arthroplasty for bilateral knee arthritisMaddali Taraka Venkata Pavan, Sun Jun-ying, Zha Guo-chun1321-13283Cement and cementless hemi-hip replacement for the repair of femoral neck fracture in the elderlyWang Ben-jie, Zhao De-wei, Xie Hui, Yang Lei, Fu Wei-min, Liu Bao-yi, Qiu Xing1345-13514Etiology and factors of total hip replacement in Hefei area of China:retrospective analysis on 3 056 cases from 5 hospitals in 6 yearsMa Zhi-xiang, Yin Zong-sheng, Xu Peng-fei, Gao Wei-lu, Hu Qin, Qi Jia-long1352-13575Cervical disc arthroplasty versus cervical discectomy and fusion for single-level cervical spondylosis:mid-term follow-up of a randomized controlled trialLuo Cheng, Qu Xia, Chen Bo, Peng Zhong-yi, Zou Yong-gen1358-13646Posterior short-segment pedicle screw fixation and bone grafting in the treatment of thoracic and lumbar fracture:follow-up evaluationDing Hao, Shen Qiang, Zhu Liang, Wei Xiao-kang1365-13707Posterior interbody fusion and pedicle screw fixation in the repair of recurrent lumbar disc herniation:6-month follow-upFeng Hao-yu, Ma Xun, He Li-ming, Chen Chen, Chang Qiang, Zhang Yan-nan1371-13768Posterior pedicle screws with iliac bone grafts to repair multi-segmental lumbosacral tuberculosis:to reconstruct lumbosacral stabilityYu Ming, Qiu Nan-hai1377-13819Fusion for treating double-segment lumbar spondylisthesis:follow-up evaluation of lumbar height, pelvic tilt angle and sacral slope angleYang Si-zhen, Ma Jin-feng, Wang De-chun1382-138710Comparison of different ways of repairing fresh femoral neck fracture in the elderlyLi Gui-chun, Wang Wen-ji1393-139911Absorbable screws and anatomical plate of medial femoral condyle for treatment of medial condyle Hoffa fractures:good steel plate attachment and firm fixationQiu Chang-mao, Liu Hong-zhi, Zhang Yin-guang, Liu Zhao-jie, Tian Wei, Jia Jian1400-140412Feasibility of proximal femoral nail antirotation with small incision in treatment of intertrochanteric fracture in the elderly patientsShi Shao-hua, Lv Shu-jun1405-140913Repair of unstable pelvic fracture in 60 cases:pathway of metallic implantsLi Jie, Zhuang Yan-feng, Wang Bing-zhan1410-141514Complex tibial plateau fractures involving posteromedial column:implantation of“bamboo raft”plate and posteromedial support plateHan Zhi-wei, Zhao Jie, Xin Jie1416-142215Internal fixation with plate and Kirschner wire to repair calcaneal fractures:comparison of Gissane angle, Bohler angle and calcaneus heightMa Dong-di, Yang Zhen-jian, Song Jin-xu, Gao Zhi-feng, Sun Li-heng, Pan Xue-wen1423-142816Volar locking plate internal fixation and external fixator in repair of unstable distal radius fractures:randomized controlled trialLi De-sheng, Li Hao-huan1429-143417Herbert screw fixation for repairing capitellum fracture through anterior elbow approach:evaluation for fracture reduction and healingZhang Yi, Tao Sheng-xiang, Zhang Yong, Hu Feng, Zhang Guo-hua1435-144018Arthroscopy assisted double titanium plate TightRope in repair of the acromioclavicular joint dislocation:strong fixation in early stageZhang Li-ming, Wang Zhi-fang, Shi Hai-wei1441-144619CT-based three-dimensional reconstruction navigation technique assisted pedicle screw placement in lumbar and sacral boneChen Xiao-ming, Chen Qian-fen, Xiao Zeng-ming, Zong Shao-hui1447-145120Biomechanical study of different internal fixations in the treatment of supracondylar femoral fracturesYang Qing, Guo Wei-chun, Liu Yang, Tan Jun-feng, Zhang Mi, Li Ming-hui, Zhang Hong-qi1452-1456 