How long you have to lie flat on your back for thoracic spine surgery depends on the type of disease and the type of surgery. Generally lying flat for 1 day or more than a month is possible. If it is a compression fracture of the thoracic spine, balloon infusion vertebroplasty is performed, and the thoracolumbar support can usually be worn to get out of bed on the 2nd postoperative day. In the case of severe thoracic vertebral fracture dislocation or thoracic spinal stenosis, etc., vertebral plate decompression nerve release spinal internal fixation surgery is performed, and this situation requires bed rest for about 1 month. Bed rest is good for the repair of tissues and avoiding the loosening of internal fixation caused by going down to the ground too early. In case of thoracic spine tumor surgery, the surgery is more traumatic, and the bed rest time is appropriately extended for 2~4 weeks. Thoracic spine surgery needs to be strictly bedridden under the guidance of the doctor, and the quadriceps muscle exercise is performed on the bed, and the flat axis is turned over.