Fractures can occur in all parts of the body after direct or indirect violence. If the external force applied is relatively large, a comminuted fracture may occur. A comminuted fracture is not a minor injury, it is a more serious injury, especially when it occurs within a joint. This is because when a comminuted fracture occurs within a joint, even if the fracture is correctly treated and the fracture position is anatomically repositioned, traumatic arthritis is likely to occur in the future. Therefore, after a comminuted fracture occurs, it is necessary to go to the hospital in time, under the examination of the orthopedic surgeon, combined with the X-ray film of the injured area, CT film and other related examinations, to make a clear diagnosis, and take the correct treatment, which will make the patient’s probability of occurrence of traumatic arthritis is greatly reduced.