The minimally invasive osteotomy can support up to 150 kg of pressure, so the patient can walk with a double crutch the day after the operation and the limb can withstand the maximum tolerable weight. If the lateral and anterior surfaces of the bone are healing well, the patient can change from double to single crutches for weight bearing one month after surgery. One and a half months after surgery, the crutches can be completely abandoned, and three months after surgery, the patient can resume normal life.