1Treatment strategies and update of irreparable rotator cuff tearsXU Cai-qi, WANG Lei514-5172An analysis of conservative treatment and operation for elderly midshaft fractures of the clavicleLUO Tao, CHEN Yu, HUA Yun-yi, HUANG Wei-jie518-5213Operative treatment of coronoid process fractures associated with acromioclavicular dislocationCHEN Hang, HU Xiao-chuan, YANG Guo-yong, XIANG Ming522-5254Cannulated screw joint suture anchor internal ifxation in the treatment of elderly osteoporotic fracture of the humeral greater tuberosityFU Wen-qin, PAN Fu-gen, GAO Ru-feng, LIU Zuo-qing, LEI Jing-hui526-5285Clinical outcomes of pulsed radiofrequency treatment for patients with shoulder pain：a systematic reviewMA Chi-yuan, LIU An, SUN Miao, WEN Zheng-fa, YAN Shi-gui529-5336Limb salvage surgery for scapular sarcoma：a review of 19 casesXUE Ying-sen, WANG Zhen, GUO Zheng, LI Hong-guo, SUN Li-guo, LIU Xin-cheng, FAN Hong-bin534-5387An one-center epidemiological analysis of scapular tumors：166 cases reportGAO Ming, ZHANG Qing, XU Li-hui, LIU Wei-feng, NIU Xiao-hui539-5458Impact factor analysis of postoperative local recurrence of soft tissue sarcomaJIANG Jun, Oliver Peck, Nicholas D Clement, Daniel Edward Porter546-5519Clinicopathologic features of epithelioid haemangioendothelioma：6 cases reportLI Lan, TIAN Meng-meng, SUN Xiao-qi, DING Yi, HUANG Xiao-yuan552-55610Intermediate-term outcomes of arthroscopic-assisted surgical treatment for developmental dislocation of the hip in childrenTIAN Qi, LI Xu-sheng, ZHOU Sheng-hu, GAO Ming-xuan557-56011Treatment of primary intraspinal canal tumors with modiifed replantation of the spinous process and lamina complexKE Rong-jun, XU Fu-sheng, CHEN Jian-min, LIU Fang-gang, QI Wei, CAO Hua, LIU Jing, GU Yong-fu561-56312A clinical study on limited long-segment fusion for degenerative lower lumbar scoliosisTANG Xiang-yu, SU Xiao-jing, YAO Zi-ming, DU Jian-wei, WANG Jing-ming, ZHANG Yong-gang564-56713A meta-analysis of application results of hydroxyapatite-coated femoral implants in total hip arthroplastyXU Jing, XU Hai-dong, ZHAO Jian-ning, ZHANG Lei568-57314An effect analysis of semi-restrictive prosthesis in Charcot arthropathy of the kneeDENG Li-qing, KANG Peng-de, PEI Fu-xing, SHEN Bin, YANG Jing, ZHOU Zong-ke, TAN Zhen, XIE Xiao-wei574-57815Special types of amputation in patients with foot malignant soft tissue tumors：2 cases reportYANG Jie-lai, ZHANG Zhi-chang, PAN Yao, YANG Qing-cheng579-58116Susceptibility gene research progress of anterior cruciate ligament injuryLI Jian, LI Yan-lin, YOU Zhi-min, HUANG Zan582-58517Research progress on preoperative transarterial embolization in patients with spinal metastasesJIANG Wei-gang, LIU Yao-sheng, LIU Shu-bin586-589 