1Reconsideration of posterior shoulder dislocationWU Xiao-ming, CAI Ming, WANG LeiEditorial561-5662Instruction for authors566,625,637,6403Long-term clinical outcome comparison of Loop technique and Hook plate in acromioclavicular joint dislocationZHANG Yin, ZHUANG Cheng-yu, YE Ting-jun, LIU Jing-feng, CHEN Yu, YU Pei, WANG LeiShoulder surgery567-5724Comparison of locking plate fixation with hemiarthroplasty in the treatment of four-part proximal humeral fracture in elderly patients (≥80 years old )YU Pei, ZHUANG Cheng-yu, LIU Jing-feng, YE Ting-jun, ZHANG Yin, WANG LeiShoulder surgery573-5785A retrospective comparative study of arthroscopically assisted 3-Bundle anatomical reduction and hook plate for acute acromioclavicular joint separationsWANG Hui, CAI Gui-quan, HE Ji-ye, ZHANG Jia-hong, WANG Dong-liangShoulder surgery579-5846A prospective comparative study of simple rotator cuff repair or combined with motor manipulation under arthroscopy in the treatment of rotator cuff injury with frozen shoulderTIAN Yu-liang, YU Hai-quan, CAO Bin, ZHAN Yao-jieShoulder surgery585-5927A comparative study of shoulder hemiarthroplasty and PHILOS locking plate in the treatment of complex proximal humeral fractures in the elderlyZHU Guang-wei, ZHANG Xin-chao, ZHANG Shi-chao, GE ZheShoulder surgery593-5988Clinical comparison of minimally invasive locking bone plate with traditional open reduction for proximal humeral fracturesCUI Xiao-chun, WANG Cao-jin, LUO Jing-tao, ZHANG Xin-jun, WU Xiao-mingShoulder surgery599-6039Conference/Call for Paper/News60310Differences in morphological parameters of acromion before and after arthroscopic rotator cuff repair with acromioplastyZENG Yi-ming, WANG Liao, YAN Meng-ning, XU Chen, ZHANG JunClinical research and practice604-60911A consensus on the treatment of acute posterior shoulder dislocationWU Xiao-ming, CAI Ming, DONG Jing-ming, FAN Tian-you, ZHANG Jun, YI Cheng-qing, YU Pei, HE Yao-hua, YANG Xing-guang, WANG LeiStandard/Protocol/Guideline610-61612Advances in the diagnosis and treatment of acromial impingement syndromeXUE Jian-gang, SUN Hai-biao, HAN Xiao-qiang, LI Guang-ming, ZHANG Zi-nan, HUANG Ting, BAI Hao, ZHANG Jin-tao, XU Lei, FENG Zhi-guoReview617-62113Research progress of operative approach for intertrochanteric fractureXU Kai, LI Kai-nanReview621-62514An analysis of complications following different distal instrumented vertebra after posterior long segment fixation and fusion for degenerative lumbar scoliosisHOU Dong-po, HUANG Wei-guo, KANG Nan, HAI YongOriginal article626-63215Conservative treatment of acute shoulder posterior dislocation combined with giant rotator cuff tear: a case reportWU Kai, ZHA Xiao-long, WU Xiao-mingCase report633-63716A report of IgG4-related disease affecting the shoulderHE Zhi-wei, ZHU Yan, FAN Gen-tao, Qian Hong-boCase report638-640 