<prompt> Best graft for femora-popliteal bypass isAutologus veinDacronTeflonPTF  <response>: Best graft for femoro popliteal bypass is autologous vein, long saphenous from same leg, if not available, from opposite limb, or else sho saphenous vein. If no vein is available, a prosthetic, polytetrafluoroethylene can be used. Best is autologous vein. Reference: Bailey and love, 27th edition, page 949 