Comminuted fractures of the acetabulum can generally be moved with the aid of crutches 2 to 3 months after surgery, depending on the healing of the fracture. Within 4 weeks after surgery for comminuted acetabular fracture, perform isometric contraction of quadriceps muscle and dorsal extension of ankle joint. Flex the ankle joint slowly and forcefully, extend the range of motion to the full range of the joint as far as possible, keep the hip and knee joint in the straight position, repeatedly make the quadriceps muscle tense and relax, exercise the anterior thigh muscle group. After 4 weeks, passive activities such as hip flexion and knee flexion can be performed with the help of family members, and after 6 to 8 weeks, hip adduction and abduction exercises can be performed with the help of family members. After 8 weeks after the fracture, if the fracture is well healed by X-ray, passive activities can be changed to active activities, and the patient can go down to the ground with the help of crutches, and practice flexion, extension, abduction and adduction of the hip joint independently. The use of crutches or walkers can reduce the pressure on the acetabulum to avoid necrosis of the femoral head. The affected limbs should be elevated after activities to promote blood return and avoid swelling of the affected limbs. It is recommended to carry out activities under the guidance of a doctor to avoid aggravation of the condition.