Based on the results from testing using ultrasound and/or an arteriogram, surgical bypass may be recommended. A graft made of a synthetic tube or blood vessel from another part of your body creates a new path for blood to flow around the blockage, increasing the amount of blood the leg and foot receive.
Two common types of surgical bypass are the femoral popliteal bypass and distal bypass.
Femoral popliteal bypass – This bypass is used when the femoral artery of the upper leg is blocked. A graft reroutes blood around the blockage in the femoral artery to the popliteal artery behind the knee.
Distal bypass – This surgical bypass is needed when the blockage is located lower down the leg or near the knee. The graft is attached to the artery above the blockage and reroutes the blood to an open artery further down the leg.