A fracture that is more than 6 weeks old is generally called an old fracture. Whether an old fracture requires surgery and whether it can be operated depends on the location of the fracture, the severity of the fracture, and the impact of the fracture on life and work. For example, if an old fracture in the spine does not compress the dural sac and cause neurological symptoms, but only compression, it can be considered as a non-operative treatment. In the case of old fractures of the tubular bones of the extremities, if the fracture has healed with only poor alignment and has little functional impact, it may also be considered non-operative. If the patient has a requirement for appearance or deformity healing, which leads to some impairment of limb function and affects life and work, surgical treatment can be considered. For some deformity healing fractures that affect the joint surface and cause abnormal force lines of the limb, surgical treatment should be considered to avoid further aggravation of the corresponding complications.