Intrinsic Dacron graft failure 19 years post-implantation.

Intrinsic failure of a knitted Dacron aortic bifurcation graft 19 years after implantation is reported. Failure was due to inability of the dilated and deteriorated left graft limb to hold anastomotic sutures. Numerous transverse cracks and breaks were detected in the Dacron filaments, in addition to small holes throughout the fabric structure, and a severe reduction in the yarn's tensile strength. Criteria are defined for establishing a correct diagnosis, and causative factors, incidence, and clinical management are discussed.