Jincheng Wang, male, professor, chief physician and doctoral supervisor of Jilin University. Famous joint surgery specialist and chairman of the orthopedic medical center, the second hospital of Jilin University. National board of the disaster medicine branch of Chinese medical association. Standing committee member of the orthopedic surgeons branch of Chinese medical doctor association. The first session executive committee and founding member of Chinese society of knee (CKS). Chairman of the digital medicine branch of Jilin province medical association. Chairman of Jilin province branch of Chinese medical association orthopedic physicians. Deputy chairman of orthopedic branch of Jilin province medical association, and the director of the joint group. The editorial board of Communications of “Chinese Journal of Orthopedics”, and the editor of “Orthopedic Journal of China”, “Chinese Journal of bone and joint injury”, “Orthopedic Biomechanics Materials and Clinical Study”. Professor Wang has engaged in orthopedic research for 28 years. In recent years, the 3D printing technology was firstly applied to the diagnosis and treatment of difficult cases of orthopedics by professor Wang. In the orthopedic medical center, the Second Hospital of Jilin University, professor Wang set up a medical 3D printing R&D center, opened up the orthopedic individual precise treatment. Following the completion of the world's first bilateral 3D printing elbow replacement in February 2014, the operations of 3D printing total wrist arthroplasty, hemiarthroplasty of wrist, hemiarthroplasty of shoulder, reverse shoulder arthroplasty, the sacrum pelvis displacement, distal ulna and total talus replacement were performed. Those achievements have won the first prize of “the Jilin province science and technology progress”, the first prize of the “Chinese medical education association science and technology progress”, the third prize of “Chinese medical science progress”. Professor Wang was granted with “Young and middle-aged expert with outstanding contribution” by Ministry of Health, “Outstanding young and middle-aged expert” by Jilin Province Medical Association, “Outstanding professional technical personnel” by the Health department of Jilin Province, “Famous Bethune Doctor of Jilin University” and other honorary titles.