Inclusion criteria:  Patients with critical limb ischemia(grade 4,5&6 Rutherford classification) and patients with disabling claudications which interferes with routine activities (grade 3 Rutherford classification). Patients with chronic total occlusion(CTO) of femoropopliteal segment which is equal or beyond 10 centimeters length. Patients with recoil after transluminal angioplasty or occlusion in previously deployed stent. If the lesion extends to popliteal artey against knee flexion.  Exclusion criteria:  Pediatric patients. Patients with isolated infra-popliteal occlusion. Patients with popliteal blind segment with bad runoff. Patients with acute thrombotic occlusions. Patients with previous bypass surgery in affected limb. Patients with aneurysmal lesion in the affected limb.