Vascular Grafting Techniques in Limb Salvage for Peripheral Artery Disease

Peripheral artery disease (PAD) is a common condition characterized by atherosclerotic narrowing or occlusion of the peripheral arteries, most frequently affecting the lower limbs. If left untreated, PAD can lead to significant disability, limb ischemia, and even amputation. Vascular grafting is a critical component of limb salvage strategies for patients with severe PAD, particularly in those with non-revascularizable lesions or those who have failed conservative therapies. This review explores the various vascular grafting techniques employed in the treatment of PAD, focusing on their clinical indications, procedural considerations, and outcomes. We examine the use of both autologous and synthetic grafts in peripheral revascularization procedures, including bypass grafting, femoropopliteal and femorodistal bypasses, and composite grafts. Special attention is given to the advantages and disadvantages of using autologous vein grafts versus synthetic prosthetic grafts, as well as the factors influencing graft patency and long-term success. The review also discusses the role of hybrid approaches, which combine surgical grafting with endovascular interventions such as angioplasty or stenting, as an emerging strategy to improve outcomes in patients with complex PAD. Additionally, we address the impact of patient-specific factors, such as comorbidities (e.g., diabetes, hypertension) and the severity of arterial disease, on the choice of grafting technique and the likelihood of limb salvage. The potential complications associated with vascular grafting, including graft occlusion, infection, and wound healing issues, are also reviewed, with a focus on strategies to mitigate these risks. Finally, we highlight recent advancements in graft materials, including bioengineered grafts and drug-eluting stents, which have shown promise in enhancing graft durability and improving clinical outcomes. By understanding the principles and techniques of vascular grafting in PAD, clinicians can better manage patients with advanced disease and improve the chances of successful limb salvage.