As average life expectancy increases and the importance of improving the health of the elderly grows, the demand for joint replacement surgery is also increasing. In particular, the proportion of joint replacement surgery among elderly patients aged 80 years or older is gradually increasing, and recently, it has been performed even on patients in their 90s and over 100 years old. In the past, advanced age itself made surgery difficult, but recently, with advancements such as personalized surgical tools and a multidisciplinary collaborative system, safe and effective surgery has become possible. Preoperative management of chronic diseases and evaluation of overall health status are important, and through this, elderly patients can also recover from pain-free daily life.