1Past and future of articular cartilage repairZHANG Ya-dongEditorial561-5632Early and intermediate clinical effects of cruciate-retain and cruciate-substitute medial pivot knee prosthesisWANG Wei-zhuo, HUANG Meng-di, HOU Dong-feng, YUAN Pu-wei, WANG Kun-zhengKnee surgery564-5683A comparative study on the clinical effects of tourniquet on the arthroscopic reconstruction of the anterior cruciate ligament and the suture of the medial meniscus with a bucket handle tearYUAN Shuai, ZHU Jun, WU Yu-li, WU Hai-shan, ZHU Yun-liKnee surgery569-5734Short-term outcomes of one-stage total knee arthroplasty for peri-articular knee fractures combined with osteoarthritis in elderly patientsCHENG Cheng, YANG Shu-hua, LIU Xian-zhe, GAO Fei, WEI Hui, WANG JingKnee surgery574-5805Open wedge high tibial osteotomy in the treatment of knee osteoarthritisLIN Tian-ye, ZHANG Qing-wen, CHEN Zhen-qiu, YANG Peng, XU Jing-liKnee surgery581-5856Diagnosis and treatment of nonspecific osteosarcoma of the kneeXU Ke-ke, WU Min-hao, SUN Wen-chao, XIE Yuan-long, CAI LinKnee surgery586-5917Research progress on knee skin temperature and serum indices after total knee arthroplastyWANG Zhuo, ZHANG Qi, HU Hui, BI Long, YANG Min, HAN Yi-shengReview592-5978Application of 3D printing technology in joint surgerySUN Chang-jiao, CAI XuReview597-6019Application of risk management based on failure mode and effect analysis on the prevention of adverse events after hip arthroplastyLI Wei, DENG Rui-wen, YU Li-ping, ZHU Du-juanOriginal article602-60610Treatment of congenital thumb trigger in infants by tendon sheath release operationBI Jun-hua, ZHU Ming-hai, ZHANG Zhi, LI GangOriginal article607-61111Anteriomedial approach for the fixation of ulna coronoid process fracture with tension bandWANG Zu-yu, CHEN Yu-bin, LIU Yang, XU BingOriginal article612-61412Comparison of clinical outcomes of replantation and repair after upper extremity amputationMA Yang, DONG Wei-dong, DING Jun-jie, GUAN Ying-jieOriginal article615-61813A study on changes of Indian Hedgehog expressions in early osteoarthritis of ratWANG Chun-li, BIAN Sen, LI Gang, ZHAO Rui-peng, SHI Yi-fan, LI Peng-cui, WEI Xiao-chunOriginal article619-62614Effects of the complex of simvastatin and gelatin sponge on tendon-bone healing after rotator cuff repair in rabbitsLI Ken, QI Chao, ZHAO Xia, YU Teng-boClinical research and practice627-63115Functional changes in the lumbar spine after lumbar medial branch percutaneous radiofrequency or endoscopic neurotomy for facetogenic chronic low back painSONG Ke-ran, ZHAO Hong-liang, QIN Jiang, SHANG Wei-lin, TANG Jia-guang, HOU Shu-xun, LI Zhen-zhouClinical research and practice632-63716Shoulder Bankart injury with diffuse giant cell tumor:1 case reportZHOU Peng, SHAO Hong-bin, YANG Qin-xu, CHEN Feng-feng, YAO Yan-bin, LI Shen-songCase report638-640 