An iliopopliteal bypass via the obturator foramen is a viable surgical option for post-irradiation femoral aneurysms when the femoral triangle cannot be accessed.
Obturator foramen bypass may warrant consideration in select post-radiation femoral cases; leaves open durability and generalizability.
This unusual case is presented for two reasons. First, it illustrates the value of a long by-pass graft from the common iliac artery to the popliteal artery passing through the obturator foramen when there are complications which forbid operation through the femoral triangle. Secondly, it provides clinical and histological evidence of the late effects upon neighbouring large arteries of radiotherapy—given in this instance for a fibrosarcoma in a thigh muscle.
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Ross et al. (1972) studied this question.
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