Lumbar spine fracture with broken nail requires different treatment measures according to the length of time after surgery and the healing situation, including conservative treatment such as wearing a brace, and re-operation if necessary. 1. If the fracture nail is broken in the early stage of lumbar spine surgery, especially within 3 months, the treatment should be decided according to the patient’s symptom and the stability of the fracture. If the symptom is light and the stability is good, conservative treatment such as wearing a brace can be considered, if the symptom is heavy and the stability of the fracture is poor, surgery can be considered to take out the endophyte and fixate the fracture again. 2. If the fracture nail is broken in the late stage after lumbar spine surgery, especially after half a year or longer, at this time, the patient’s fracture has basically healed, and the patient can consider not to take the endoprosthesis if he is asymptomatic, and remove the endoprosthesis if the patient is symptomatic. Therefore, lumbar spine fracture nail broken need to be based on the situation, it is recommended that the patient timely hospital consultation, according to the patient’s symptoms and the results of the examination line targeted treatment.