In most cases, it is not possible to sit up after a lumbar spine fracture, mainly for the following cases: 1. If conservative treatment is done after a lumbar spine fracture, it is necessary to take strict bed rest and not to sit up or get off the ground. If you sit up, you can make the compression of the fracture more serious, and even delay the healing of the fracture or not. 2, if the lumbar fracture is done by vertebroplasty, you can sit up early after the surgery, but you need to wait for 2-3 days after the surgery. 3, if the lumbar fracture is done by incisional repositioning of the pedicle nail fixation, you need 1-1.5 months after the surgery to sit up.