Recent stent design improvements focus on decreasing stent fracture rates which can negatively impact patency rates by rearranging strut alignment. Although there have been several retrospective or registry studies for atherosclerotic femoropopliteal disease in the East, there have been few randomized control trial for comparison of stent fracture and primary patency between different nitinol stents. Smart stent has the peak-to-valley bridge and in-line interconnection. Medtronics company have claimed Complete's stent crowns have been configured to minimize crown to crown interaction, increasing the stent's flexibility without compromising radial strength. We made the hypothesis that the design of Complete-SE stent might be more fracture-resistant or effective for in-stent restenosis, compared with Smart stent. On the other hand, 2011 ESC guideline recommended that dual antiplatelet therapy with aspirin and a thienopyridine for at least one month is recommended after infrainguinal bare-metal-stent implantation. Recent meta-analysis has shown that the efficacy of cilostazol in the atherosclerotic femoropopliteal lesion was proven. However, still specific data regarding a variety of antiplatelet regimen are limited. To date, there is no the study for comparison between clopidogrel and cilostazole in patient undergone stent implantation in femoropopliteal lesion. In conclusion, the purpose of our study is to examine and compare Primary patency and stent fracture between different two-nitinol stents (S.M.A.R.T. CONTROL versus Complete SE) and to compare binary restenosis rate between clopidogrel and cilostazol in femoropopliteal arterial lesion.