1. General treatment (1) Children with green branch fractures mostly have angular deformity, which can be corrected by gentle traction under proper anesthesia and plaster fixation for 6-8 weeks, or by plaster wedge incision method to correct angular deformity. (2) For displaced fractures, longitudinal traction should be applied to correct the overlap and angular deformity, and under continuous traction, the forearm should be placed in the posterior rotational position if the upper 1/3 of the fracture is tied (above the stop of the anterior rotator muscle), and the forearm should be placed in the neutral rotational position if the lower 1/3 of the fracture is below the stop of the anterior rotator muscle to correct the rotational deformity, and then the fracture should be squeezed to restore the tension of the interosseous membrane and the normal gap, and finally the fracture end should be completely The fracture end is finally completely aligned. After repositioning, the fracture is fixed with a long-arm plaster tube for 8 to 12 weeks, and the plaster is cut and released immediately after forming, and the blood circulation of the extremity is observed during fixation to prevent ischemic contracture. After the swelling subsides, adjust the external fixation tightness in time and pay attention to observe and correct the fracture re-displacement. 2.Open repositioning and internal fixation are suitable for those who have failed in manual repositioning or have difficulty in fixing after repositioning; those who have multiple fractures of the upper limb with interosseous membrane rupture; those who have open fractures with little time after injury and light contamination; those who have bone discontinuity or deformity healing and limited function. Special precautions: When taking external fixation by manual repositioning, it is important to correct the rotation, angulation and overlapping displacements to avoid affecting the function of the limb. After plaster or splint fixation, make sure to closely observe the sensation and peripheral blood flow of the limb to avoid osteo-fascial compartment syndrome. In case of suspected osteofascial compartment syndrome, prompt incision and decompression should be taken to avoid irreversible damage.