This division is subdivided by regions such as hip joints, shoulder joints, knee joints, feet and ankle joints, by diseases like spinal diseases and osteoporosis, and by fields like sports medicine and microsurgery for hands and arms. The medical staff strives to study treatments for respective problems, and there is a joint center that is inclusive of all joint diseases. In particular, our hospital has far more experience than anyone in Korea in performing pelvic fracture surgery and hip joint replacement at a higher level of difficulty. In the case of hip joint replacement, there are cases where revision is needed after replacement. The problem is that it has a very high level of difficulty. Our hospital has a lot of experience even in the revision, and thus has been making our fame. Moreover, we have been showing good performance in shoulder joints. When it comes to reverse total shoulder arthroplasty, Tornier Inc. in France consults our hospital.