The simple steps of internal fixation with pedicle nail surgery are as follows: 1. First, the responsible segment, that is, the segment that needs to be operated on, will be reconfirmed again and again. After the patient arrives at the operating room, the surgeon will reconfirm the patient through his own physical examination, as well as combining the previous imaging data with the on-site fluoroscopic means. The responsible segment cannot be mistaken, and once mistaken, it will lead to a complete failure of the treatment.2. Through the appropriate surgical access, the vertebral arch that needs to be operated is exposed, and the specific access that needs to be nailed is determined through the cross or herringbone crusade method, and then the appropriate length of screws are placed in the vertebral arch root. After all screws have been placed, the rod system is applied. After placement of the pinning rod system, the patient is first given a simple correction, which is achieved by tightening the pinning rod system.3. After proper and satisfactory repositioning has been achieved, the soft tissues are closed layer by layer and drains are left in place.