Thoracic spine fracture is not allowed to lie on the side in the early stage because the vertebral body is compressed or crushed after the thoracic spine fracture, and it is easy to damage the spinal cord in the vertebral canal if you adopt the side lying position to sleep. Once the spinal cord is damaged, there will be loss of motor function of the lower limbs, sensory dysfunction, urinary incontinence, loss of sexual function and other serious paraplegia symptoms. Therefore, after the fracture of the thoracic spine, within 8-12 weeks, the patient should sleep in the supine position, and wait until the fracture has healed, that is, 8-12 weeks after the radiographs show that the fracture has reached clinical healing, and the patient does not have any local pain, and can walk on the ground before sleeping in the side-lying position.