Get out of the way of the misconceptions about artificial joint replacement: Artificial joint replacement is no longer an unfamiliar term to many people. However, many people have misconceptions about artificial joint replacement. Some people feel that the effect of suffering for nothing is not necessarily good; some have heard that they can never walk again after replacing the joint …… all kinds of cognitive misconceptions, so that many patients prefer to endure the pain caused by arthritis, rather than to replace the artificial joint. Such a psychology we can call “artificial joint replacement phobia”. How should patients dissolve their fear of artificial joint replacement? How can joint pain be reversed in time to improve patients’ quality of life? In clinical clinics, many patients have the same reasons for saying “no” to artificial joint replacement, and in addition to fear of pain and poor results, there are two typical cognitive misconceptions that need to be addressed. Myth #1: Artificial joint replacement requires long-term bed rest. In the 1990s, when modern artificial joint replacement was first introduced in China, doctors often put patients in bed for three months for fear of post-operative joint dislocation. However, clinical practice found that prolonged bed rest caused more problems, so this practice was abandoned a long time ago. Nowadays, artificial joint replacements emphasize getting patients out of bed as early as possible. Generally speaking, patients can be out of bed one to two days after surgery and undergo functional rehabilitation as soon as their physical condition allows. Of course, some elderly patients with severe osteoporosis or those who have had revision surgery may require longer periods of bed rest. Myth 2: Artificial joints can only last 15 years. Such a misconception is daunting to many young patients. In fact, this is a way of speaking out of context. Current international case follow-up shows that the 20-year survival rate of artificial joints is 90%. Approximately 90% of patients who have used artificial joints for more than 20 years are using prostheses that were manufactured 20 years ago. The prostheses used in clinical practice today are far superior in every way to those used 20 years ago, and the surgical technique places more emphasis on protecting the soft tissues, so there is no doubt that the survival time of the artificial joint will be longer. For many patients with end-stage joint disease, although the joint disease itself is not a malignant tumor and is not life-threatening, it seriously affects the quality of life and has become an “undead cancer”. In the international medical field, hip and knee arthroplasty is regarded as one of the most successful surgeries of the 20th century. This is because it has effectively solved a large number of patients’ pain and restored a good quality of life to them. In the last decade or so, there have been great advances in the biomechanics of the artificial joint, the morphology and surface treatment of the implant material, and the friction configuration of the weight-bearing surface.