The purpose of fusion surgery is to correct the curved spine by internal fixation and to fix the deformed part in the corrected position, thus achieving relief of clinical symptoms and improvement of appearance. Types: posterior surgery, anterior surgery, anterior-posterior fusion surgery Issues that should be noted before fusion surgery: 1. Fusion surgery is generally applied to patients with scoliosis greater than 45°. For younger patients, the indications for surgery may be relaxed, considering that the deformity will continue to progress during their growth and development. 2, The effect of fusion surgery is related to the nature and location of the patient’s scoliosis, the accompanying distortion or rotation, the shape of the thorax, the degree of stiffness of the deformity, and other factors, and the postoperative appearance may not always meet the patient’s ideal. 3. Due to the large number of surgical segments and long incisions, it often takes 2-3 months or even longer to resume normal work and study after surgery. Of course, during this recovery time, patients can get out of bed and gradually take care of themselves. 4. Due to the need for multi-segmental fixation and correction of deformities, the spinal cord or nerve roots may be affected, causing corresponding symptoms. The risks of this surgery need to be understood in detail by the surgeon before surgery. 5. Since the surgery requires multi-segmental fixation, more endosseous implants are required and the cost is higher. General scoliosis such as the choice of imported internal fixation materials need 100-1200000, domestic internal fixation materials need 80-100000.