The endograft was originally developed to repair aneurismal disease of the infra-renal aorta and has since realised many other applications, including the treatment of arterial trauma. Traumatic transection of the thoracic aorta is a condition associated with a high mortality and affected patients often have multiple injuries. Endovascular repair of thoracic transection is an attractive option in those patients for whom open surgical repair would be highly dangerous and other groups have reported early technical success. However, we report 3 cases of young patients with traumatic thoracic aortic transection, initially treated successfully by endoluminal stenting, who developed the complication of stent collapse. We discuss here the options available to treat the complication.