It takes 100 days for a fracture to heal and about 3 months for a fracture to heal. When the fracture is healed, then the fracture line will disappear. Over a long time the fracture is not completely healed, especially if the fracture has been there for 1 year, the fracture end has sclerosis and the fracture line still exists, there may be a situation of bone discontinuity. Some different fracture sites, the healing situation is different, itself is a long time, although the fracture line has not disappeared for 1 year, each time the regular film review, the fracture still has some signs of healing, indicating that further observation can be made. If it is clear that the fracture line has not disappeared for 1 year and it is determined to be a case of bone discontinuity, we should consider re-fixing the fracture with 2 iliac bone implants, which is the only way to further promote the healing of the fracture.