Feasibility of the Complete Endovascular Reconstruction of the Trifurcation (CERT) Technique for Revascularisation in Chronic Limb Threatening Ischemia

Abstract

Background Revascularisation of patients with chronic limb threatening ischaemia due to arterial lesions in the below the knee segment can be challenging. This study describes a novel technique that allows a complete endovascular reconstruction of the trifurcation (CERT) utilising stents in the below the knee segment when conventional techniques are exhausted, or have failed to deliver an acceptable result, leading to remaining outflow compromise. Methods: Eight patients with Rutherford 5 chronic limb threatening ischaemia underwent CERT between January 1st, 2018 and January 1st, 2020. All patients underwent ultrasound at 6 weeks post operatively and then at variable intervals until the completion of the follow up period in March 2020. Results: Technical success of the CERT technique was achieved in all patients. Six patients had anterior tibial artery/Tibioperoneal trunk reconstructions, whilst 2 patients were stented directly into posterior tibial and peroneal artery. Five patients (63%) achieved wound healing. All-cause mortality was 25% (2 patients) with 1 patient achieving wound healing prior to death. Two stents were occluded during the follow up period. The first was asymptomatic and had achieved wound healing. The second was symptomatic with stent occlusion and a delayed presentation with Rutherford 3 acute limb ischaemia. Conclusions: Complete endovascular reconstruction of the trifurcation is a feasible option to achieve revascularisation in patients with tissue loss and below the knee arterial lesions allowing a continuous reconstruction of the trifurcation segment keeping the anatomical configuration intact. Clinical outcomes appear acceptable however larger series are needed.