The whole process of steel pinning for thigh fracture surgery, including anesthesia, line incision, fracture repositioning, steel pin fixation, radiographs, and suturing the wound. 1. Anesthesia: the patient can take general anesthesia or intrathecal anesthesia to perform the surgery. 2. Make incision: after successful anesthesia, the patient takes the supine position, and an incision is made proximal to the broken end of the fracture to expose both ends of the fracture. 3. Fracture reduction: the fracture site will be reduced to its original position. 4. Pin fixation: After the fracture has been repositioned, it is important to maintain the repositioning in a stable manner. Aseptic sterilization is required at the site of pin entry to avoid infection. Choose the correct angle of selection of the needle to avoid injury to the surrounding nerves and blood vessels, through the medical drill, the installation of steel pins, into the thigh bone tissue, for fixation. 5. X-ray: local X-ray film is needed to clarify the direction and position of the steel needle. 6. Suture: After making sure that the fracture is facing well, the wound will be sutured layer by layer, and the operation will be completed. All of the above are specialized operations and need to be performed by a doctor.