The mayor amputation rate (15.4%) was quite high after a revascularization especially in cases that have a thrombosis on a chronic lower limb ischemia. The rates of mayor amputation and of mortality were no significative statistic different in two groups. The petancy rate of femoro-popliteal artery bypass with the artificial graft (PTFE) was same with saphenous vein after one year follow-up Conclusion: Chronic lower limb ischemia is a severe vascular disorder that almost happened on the middle age male, smoking patients.