Fracture surgery is generally 1-2 hours, special circumstances may be extended to more than three hours, the details are as follows: First, for most of the simple fracture, after surgical incision and reduction and internal fixation, only 1-2 hours can be completed, the difficulty is not great, and the degree of risk is also relatively light. Secondly, serious and complicated fractures, such as comminuted fractures or fractures near the joints, will take a longer time. If combined with other injuries, such as nerve or blood vessel breakage, it will take a longer time, usually more than three hours. The length of the operation is mainly determined by the difficulty of the operation and the degree of injury, if the fracture is difficult and the degree of injury is heavy, the operation time will naturally be extended.