Artificial joints are artificial prostheses used as joint replacement surgery to replace damaged joints and continue to function as a joint. The price of an artificial joint varies greatly depending on the manufacturer of the prosthesis chosen and the part of the joint to be replaced. For example, imported artificial knee joints generally cost between $30,000 and $50,000. Domestic artificial joints are relatively inexpensive, but can cost around $20,000. The main purpose of artificial joint replacement is to relieve joint pain, correct joint deformities, restore joint function, and improve the patient’s quality of life. When performing an artificial joint replacement, it is important to determine the indications for the surgery. Only if the joint is severely damaged or deformed and the normal function of the joint is lost, can the artificial joint be replaced. The life span of an artificial joint is generally 10 to 15 years, so care should also be taken when choosing an artificial joint replacement. There may be complications after an artificial joint replacement, such as loosening or dislocation of the artificial joint prosthesis, deep vein thrombosis, infection, or nerve damage. This is why it is important to take good care of yourself after an arthroplasty. Artificial joint replacement requires the selection of the right artificial joint according to the individual’s condition, financial ability, etc.