Bone nailing is a technique commonly used in orthopedics, also known as bone traction, bone puncture, or internal fixation surgery. For simple bone traction is the most practical in clinical practice. Generally, patients with fractures of the extremities usually require bone traction before surgery because the fracture end is displaced more significantly, that is, a kerf pin is inserted at both ends or one end of the fracture, and then the affected extremity is tractioned with a heavy object to achieve fracture repositioning, reduce local pain and bleeding, and prepare for the next step of surgery. It can also be used for degenerative diseases and then for internal fixation surgery, which requires a bone nail. The most common spine surgeries in clinical practice, such as cervical spondylosis and lumbar disc herniation, require a bone nail in the adjacent vertebral body because the herniated disc has to be removed and a steel rod is attached to stabilize the bone.