Spiral fractures are usually caused by rotational violence and are unstable fractures. After the fracture, the spiral fracture is easily displaced by muscle pulling, such as angular deformity and shortening deformity, etc. It is difficult to maintain the normal anatomic position of the fracture by manipulation, external fixation such as plaster or splinting, even if the fracture is reset at that time, it is likely to trigger the displacement of the fracture again at a later stage. Spiral fractures are not stable fractures and are usually treated with conservative treatment, so internal fixation with an incisional plate or intramedullary nail is possible. Very few spiral fractures without significant displacement can be treated by plaster tube fixation with strict braking of the affected limb and regular review of x-rays, but if displacement occurs during treatment, surgery is still required. In clinical practice, stable fractures mainly include compression fractures, transverse fractures, and bruxism fractures, etc. These stable fractures can usually be treated conservatively.