A 64-year-old man who had chronic aortic dissecting aneurysm with true lumen obstruction of the abdominal aorta was referred to our hospital for surgery. He underwent total aortic arch replacement with the elephant trunk technique using an aortofemoral artery bypass as a first-stage operation. Reconstruction of the thoracic aortic descending aneurysm using the previous elephant trunk graft in a second-stage operation was feasible. His perioperative course was uneventful and he had no neurologic complications.