84-year-old female with a hyperextension fracture of L4, treated by open posterior cemented osteosynthesis (radicular decompression associated), with 47° of anterior diastasis in the pre-operative CT scan (a). Immediate post-operative CT scan showing no relevant reduction of the anterior diastasis measured at 43° (b). At 6 months, the CT scan shows a significant reduction to a 30° anterior diastasis (c), allowing for consolidation through anterolateral osseous bridging (d).