How long it takes to remove the steel nail after lumbar spine fracture is well, it should be judged according to the recovery of lumbar spine, and it can not be generalized, generally it takes 1 to 1.5 years. The length of time to remove the steel nail after lumbar spine fracture surgery varies from patient to patient, and requires comprehensive judgment based on imaging results after review. If the lumbar fracture site heals well, it can usually be removed within 1 to 1.5 years; if the healing is poor and the recovery time is delayed, the removal of the steel nail may take more than 1.5 years or even longer. At present, when performing internal fixation of lumbar vertebral fracture with nail-rod system, usually at the same time, lumbar vertebral body fusion vertebral osteopathy will be performed, the material of internal fixation is getting more and more advanced, the stability is getting better and better, and some steel nails don’t need to be removed, and can be left in the body all the time. The time of nail removal should be judged according to the situation, too early removal may affect the healing of lumbar vertebral fracture, too late removal may make it difficult to remove the nail. Therefore, it is recommended to have regular checkups and remove them under the guidance of the doctor to avoid affecting the therapeutic effect.