Infrainguinal vein graft procedures may be performed, generally, on patients with critical limb ischemia (CLI) or popliteal artery aneurysm (PAA). Autologous vein graft, when adequate and available, is usually the preferred conduit, especially in the below knee vascular districts. Vein grafts may complicate with the onset of stenoses (up to 30% of cases). Such complications may develop, due to myointimal hyperplasia along the body of the graft or, more often, at the proximal or distal anastomoses where sutures are performed. In vascular surgery procedures, in case of arterial anastomoses, absorbable suture material is generally not preferred, mainly for the fear of breakage of the suture line. Previous experimental studies performed in animals and humans and a recent clinical study performed in humans on carotid surgery showed that absorbable sutures used in vascular surgery may even reduce the development of intimal hyperplasia and may reduce postoperative stenotic complications. The aim of this study is to evaluate the early and long-term results of absorbable sutures used in peripheral vascular surgery.