Fracture casting is a good treatment option for closed fractures, where the type of fracture is predominantly transverse rather than oblique or comminuted. The cast can effectively maintain the alignment of the fracture ends, which can help the fracture to heal. However, for open fractures and unstable fractures such as obvious oblique and comminuted fractures, surgical treatment is preferred. Surgical incision of the skin is needed to expose the fracture, and then the fracture is repositioned, and then a steel plate and steel nails are applied for internal fixation in order to effectively maintain the stability of the fracture. In this case, it is difficult to maintain the alignment of the fracture breaks by applying plaster alone, which often affects the healing of the fracture. In particular, subconscious movements may cause the fracture to reappear, resulting in non-healing and delayed healing over time.