The bony connecting line is usually the fracture line at the broken end of the fracture on x-ray examination imaging. Three months after lumbar burst surgery, the fracture line should normally disappear or the fracture line should be completely blurred, indicating that the fracture line has healed well. However, if the fracture comminution is severe, the fracture healing time will be prolonged and the fracture line may take longer to disappear. In general, lumbar burst fracture after surgery should lie on a hard board bed, rehabilitation training should be carried out under the guidance of the doctor, lying down should be turned over diligently, pay attention to the overall body turn over, to avoid distorting the body resulting in lumbar vertebrae pressure increase; moderate, moderate exercise lumbar back muscles and lower limb joints and muscles, quit smoking and alcohol, healthy diet. In the three months after the operation, you can gradually carry out lumbar function and strength exercise, and when you first start to resume the exercise, it is recommended to wear protective gear, and you can carry out the exercises such as “Little Swallow Fly” and “Arching Bridge”, which can increase the strength of the lumbar and back muscles and enhance the cardiopulmonary function. Exercises in the first three months after surgery should be based on your own condition, progressive, and pay attention to timely review and consult the doctor for details, if discomfort occurs, please consult the doctor in a timely manner.