Doing fracture surgery normally takes 1-2 hours, and in special cases it may be extended to more than three hours, as follows: First, for most simple fractures, after surgical incision and internal fixation, it only takes 1-2 hours to complete, which is not very difficult and the degree of risk is relatively light. Second, serious and complicated fractures, such as comminuted fractures or fractures near the joints, will take a longer time, and if combined with other injuries, such as nerve or blood vessel rupture, it will take longer, 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 severe, the operation will naturally take longer.