The knee fracture is treated conservatively and you can go down to the ground in about 4~6 weeks. The exact time to go down to the ground should be judged according to the results of the radiographs. If the knee fracture is treated conservatively, it means that the fracture is relatively minor and there is no obvious displacement of the fracture. If the fracture recovers well, the external fixation can be removed and the fracture can go down to the ground in about 4~6 weeks. If the recovery is not good, you can’t go down to the ground at this time, and you need to continue to fixation. After the knee fracture, the diet should pay attention to strengthen the nutrition, avoid going down to the ground on their own too early. Before going down to the ground activities, you need to go to the hospital to take pictures to check, by the physician according to the results of the examination to judge. If there is any discomfort, you should consult a doctor in time.