Kirschner pins are one of the most commonly used internal fixation materials in orthopedics and are available in two materials, stainless steel and titanium. Clinique pins are extremely widely used in orthopedic surgery and have the advantages of being less invasive and less expensive. In adult fractures, Clinique pins can fix fractures of short bones, such as metacarpal, metatarsal, and toe fractures. The common avulsion fractures or tension fractures in orthopaedics are often fixed with a combination of Kirschner pins and wires. Also, in orthopaedic surgery, for complex fractures with severe comminution, such as heel fractures and tibial plateau fractures, Kirschner pins are used for temporary fixation or for prying-assisted repositioning. In children, because they are in the growth phase and the epiphysis is not yet closed, if a fracture occurs and requires surgical treatment, it is usually fixed using a Kirschner pin because the Kirschner pin has little effect on the epiphysis and generally does not affect the bone development of the child. For open fractures, the Kirschner pin is also used when the fracture is fixed with an external fixation brace.