The role of splinting fracture mainly has the following aspects: 1, through fixation can avoid displacement of the fracture end and stress reaction, which can also avoid the fracture end of the surrounding tissue stimulation, can help the healing of the fracture; 2, the splint is relatively light compared to the cast, so as to reduce the neck discomfort caused by the neck pull when the forearm suspension, can make the human body It is easier for the body to accept this treatment; 3. The air permeability of splint is better to avoid the itching and uncomfortable feeling of the skin after the plaster fixation; 4. The cost of splint treatment is less, generally the splint fixation is about forty to fifty dollars to solve the problem, but for the plaster, it is several hundred dollars, which can reduce the patient’s cost and the economy is better.