Despite the increasing use of tube grafts to treat aortic aneurysms, b
ifurcated prostheses remain the most frequent solution. Advocates of t
he tube graft emphasize faster positioning and lower operative morbidi
ty and mortality rates. However, the condition of the aortic orifice (
where atheromatous lesions are maximal) and the aneurysmal or occlusiv
e iliac disease frequently associated with aortic aneuysms usually req
uire use of a bifurcation prosthesis for complete treatment of aortoil
iac lesions (J Mal Vasc 1996; 21, Suppl. A : pages 53-57).