Femoral popliteal bypass surgery, or fem pop bypass, creates a new route for blood flow to your lower leg. During the leg bypass, your surgeon places a graft, a replacement for the damaged artery. The graft may be a tiny synthetic (human-made) tube.
Your surgeon makes an incision (cut) near your shoulder and in one or both of your groins. A flexible plastic tube, called a bypass graft, is inserted, which connects the axillary artery in your shoulder to the femoral arteries in your legs.