“Doctor, how long will the artificial joint I have replaced last?” This is one of the most common questions I get asked in my extensive clinical work. Yes, when a patient finally makes up his mind to choose a surgeon he trusts to perform a joint replacement after a long period of suffering from pain and repeatedly seeking medical help, he wants to have a “one-size-fits-all” joint replacement, to be free from pain forever, and never to have a revision! In fact, as a surgeon, I wanted to avoid all infections, avoid all bone defects, and replace the joint once and for all, without revision. However, from a scientific point of view, every surgery has the possibility of revision, and the artificial joints we replace in the human body are in a race for life with the patient. Hip and knee joints are complex load-bearing joints, under load, the prosthesis simultaneously withstand the combined effects of pull, pressure, torsion and interface shear and repeated fatigue, wear and tear. Therefore, the prosthetic material must have medium strength, plasticity and resistance to fatigue, wear and corrosion, and the safe load capacity of the entire joint should be at least 7 times its body weight. In addition, due to the long-term implantation of the prosthesis, the material should have good biocompatibility, non-toxic side effects, resistance to chemical and electrochemical corrosion of body fluids, but also hope that the specific gravity is light, elastic modulus is close to the human cortical bone. In view of this situation, there are strict requirements for the materials used in the production of artificial joints. In recent years, new research findings have been applied to the clinical practice of artificial joint replacement. Bioceramic materials are being developed and widely used in clinical practice; pretreatment of the prosthesis surface to increase the fixation effect of the prosthesis to the bone and to prevent loosening and detachment; changes in the chemical composition of the alloy and improved processing to solve the problems of wear, fatigue fracture and loosening of the prosthesis stem; and surgical techniques are gradually improving, with increasingly precise surgical instruments that can ensure good positioning of the prosthesis in most cases. Recently, at the recently concluded 16th Annual European Orthopaedic and Trauma Conference (EFFORT), Professor Philippe Hernigou from France conducted a 30-year follow-up comparative study on the implantation of different ceramic interface prosthetic joint replacements in young patients aged below 30 years, all of whom were patients with femoral head necrosis, which attracted great attention from the participants and became one of the top EFORT conference The paper was one of the top reported articles at EFORT and also picked up the gold medal for the EFORT paper. The specific results are as follows: Patients under 30 years old with joint replacement after 30 years of use These patients were all under 30 years old with joint replacement, and they not only obtained a good quality of life to return to society, but their daily activities were considerable. In other words, ceramic to ceramic interface, 75% of the patients are still using well after 30 years, while they are applying the ceramic products of 30 years ago, the modern fourth generation nano ceramic prosthesis, which has far better performance than the third generation ceramic. Take Shanghai, its human evaluation life expectancy is 82.6 years, which belongs to the leading in the country, even so, from the theoretical analysis, people over 60 years old replaced with the fourth nanoceramic artificial joint, its life expectancy is almost nothing to worry about.