1The confronting problems and discussion on hip fractureZHANG Chang-qing, JIA Wei-taoEditorial801-8052Clinical effects of elbow joint arthrolysis and external fixator in the treatment of elbow stiffness after the humeral fractureGAO Peng, LI Han-peng, JIANG PanTrauma806-8093Modified Stoppa combining with iliac fossa approach in the treatment of pelvic fractures under the assistance of digital technologySUN Yong-jian, LI Wei-cheng, BAI Wei-jian, DING Chao, CHANG Si-ling, CHEN Hong-fenTrauma810-8134Clinical effects on senile patients with femoral intertrochanteric fractures: report of 34 casesLI Yu-biao, GUO Nai-ming, XU Hai-tao, LUO Xiao-wei, HUANG Meng-quan, LAI Qiu-lianTrauma814-8175Effects of calcitriol on bone mechanical structure in diabetic ratsZHENG Ya, ZHANG Feng, CAO Jian-ye, DONG Li-wei, GAO Wen-shuang, ZHANG JingTrauma818-8226Surgical treatment of comminuted patella fractures with a percutaneous minimally invasive Pyrford techniqueZHOU Kai-hua, YANG JunTrauma823-8277Prospective study of the effects of ankle fracture blocks after the surgical fixation on joint functional recovery after the ankle fractureFENG Wen-shengTrauma828-8328Minimally invasive percutaneous plate fixation in the treatment of calcaneal fracturesCHEN Yong-gang, XIAO Xun-gang, WEI Xiao-dong, ZHOU TaoTrauma833-8369Regulation mechanism of BMP2 on CXCL12 expression in fracture repair and its clinical significanceKANG Kai, BAI Dong-yu, XUE Jian-li, LUAN Yan-jun, LIU Yan-xiongTrauma837-84310Research progress of suprapatellar approach with intramedullary nails for the treatment of tibia shaft fracturesCHEN Shui-lin, SUN Gui-caiReview844-84611Diagnosis and surgical treatment of the pseudarthrosis after lumbar spinal fusionQI Long-tao, LI Chun-de, ZHANG ZhengReview847-85112Progress of relationship between autophagy and osteosarcomaSHI De-yao, PU Fei-fei, SHAO Zeng-wuReview851-85613Screening and diagnosis of severe trauma of the lower limbs in childrenZHOU Hong-yan, ZUO Yu-ming, WANG Yue-guang, ZHAO Hong-bo, ZHANG Wen-longClinical research and practice857-86114Application of Zero-P cervical anterior fusion fixation system in three-segment cervical fusion and its effectiveness evaluationZHANG Rui-hua, CAO Ya-fei, LIU Wei-dong, LI HengClinical research and practice862-86615Clavicula pro humero reconstruction after tumor resection of the proximal humerusWANG Wei, YU Xiu-chun, LI Xiao, WANG Zhen-xing, ZHAO Ren-tao, XU Ming, ZHENG KaiOriginal article867-87316Effects of ginsenoside Rb2 on osteoclast regulation in vitroSU Ke, QIU Yu-cheng, WANG Chun-mei, YUAN ZhiOriginal article874-87717Tumor induced osteomalacia: 1 case report and literature reviewFAN Yan-ting, LI Quan-min, DU Rui-qinCase report878-880 