Artificial joint replacement is a good treatment for many end-stage joint diseases and can effectively eliminate pain and restore joint motion. However, many patients are reluctant to undergo surgery because of various concerns, and suffer from pain every day. One of the reasons is that “artificial joints only last for 10 years”, and they delay for fear of another revision. In contrast, some patients who have already had artificial joint replacement surgery are very nervous about coming to the doctor in their ninth year because “the artificial joint only lasts ten years” and asking, “Should I have a revision next year?” Other patients have been told at one hospital that it would last 10 years and at another hospital that it would last 15 years, thus wondering, “Why is there such a big difference in the level?” It seems that the phrase “artificial joints only last 10 years” is harmful to people. So, how many years can artificial joints last? The service life of an artificial joint is measured by a metric such as “prosthesis survival rate,” which refers to the percentage of patients in a certain number of patients for whom the prosthesis is still in good condition after a certain number of years of follow-up. Revision surgery is commonly reported in the literature as the endpoint event for inclusion in the statistics, meaning that when a patient requires revision surgery on that particular prosthesis at a certain point in time for whatever reason, then it is statistically possible to say that the previous prosthesis failed. Conversely, if the prosthesis is still in good use in the patient at that statistical point in time, then the prosthesis is still “alive”. When the “survival” or “failure” of the prosthesis is statistically processed for many patients, the “prosthesis survival rate” for that patient population can be derived. The “prosthesis survival rate” expresses the overall status of a particular population, which varies from population to population and over time, so different authors will report different data. Most international joint surgeons now agree with the statement that “the long-term survival of artificial hips and knees is about 95% at 10 years, about 90% at 15 years, and about 85% at 20 years. Longer follow-up data are difficult to obtain because it is almost impossible to follow the same group of patients continuously over a period of 20 to 30 years, during which time there are many changes in hospitals, doctors, patients and society. The phrase “artificial joints only last 10 years” or “artificial joints only last 15 years” is obviously a statement taken out of context, a way of simplifying a complex statement, but it leaves out important information and causes a lot of misunderstandings. A careful analysis shows that approximately 85% of patients have had their prosthesis for more than 20 years, and that they are using prostheses that were manufactured 20 years ago. There is no doubt that the currently used prostheses are far superior to those made 10, 15 or 20 years ago. Thanks to an in-depth understanding of the physiology of human joint motion and the mechanics of artificial joints, and the increasing development of surgical instrumentation, along with the fact that surgical techniques have also improved considerably over the past, modern hip replacement surgery requires precision down to the arc, and knee replacement surgery down to the millimeter. Moreover, there is now a greater emphasis on soft tissue protection to avoid unnecessary damage, and “less invasive” surgery is advocated to enable the patient to move around as early as possible after surgery. Modern hip replacement surgery has been in development for about 50 years, and knee replacement surgery for about 40 years, and is regarded as the most successful surgery of the 20th century, which has indeed solved the pain of a large number of patients, restored them to a good quality of life, and had excellent long-term results. Dr. John Charnley of the United Kingdom was knighted by the Queen of England for his outstanding contributions to hip replacement surgery. In the last decade or so, the field of artificial joints has made great additional advances in many aspects of biomechanics, implant material morphology and surface treatment, and load-bearing surface friction payment configurations, making this treatment modality a great success in younger patients as well, and youth is no longer a contraindication to artificial joint replacement surgery. At this stage, the focus of consideration in the field is to give the prosthesis sufficient longevity, with the goal of reaching 50 years or more, to make it a once-in-a-lifetime procedure for the patient. Therefore, for patients who are afraid of surgery because “artificial joints only last 10 years”, please do not hesitate because of this specious statement. For patients who have already had a replacement, please don’t come back to your doctor in the ninth year, but see your surgeon once a year or every two years to see how your joint is “surviving” inside you. For patients who get different answers at different hospitals, that should make sense now, right?