Composite sequential grafts for femorocrural bypass reconstruction: experience with a modified technique

Area of Science:

• Vascular Surgery
• Reconstructive Surgery

Background:

• Evaluates a modified composite sequential femorocrural bypass graft technique.
• Grafts combine prosthetic femoropopliteal and autologous vein crural sections.
• Utilizes an intermediate anastomosis on the above-knee popliteal artery.

Purpose of the Study:

• To assess the efficacy of a modified composite sequential femorocrural bypass graft.
• To determine its suitability for patients with critical lower limb ischemia and insufficient autologous vein.
• To investigate the impact of popliteal artery conditions on graft outcomes.

Main Methods:

• Retrospective case-note study of 68 grafts in 65 patients (1985-2000).
• Patients had critical limb ischemia and inadequate long saphenous vein.
• Grafts used arm veins or short saphenous veins when long saphenous vein was unavailable.
• Popliteal artery disobliteration performed in 32% of cases with occluded segments.

Main Results:

• Achieved 2-year cumulative primary patency of 68%, secondary patency of 73%, and limb salvage of 75%.
• Localized popliteal artery disobliteration did not significantly compromise graft patency (P =.07).

Conclusions:

• Composite sequential grafting is a satisfactory option for limb revascularization when autologous vein is insufficient.
• An occluded above-knee popliteal artery segment is not a contraindication for this procedure.
• This technique offers a viable reconstructive solution for critical lower limb ischemia.