Indocyanine green (ICG) fluorescence angiography has emerged as an intraoperative method to accurately assess real-time tissue vascularity, perfusion and anastomotic patency in flap surgery. We illustrate a complex case of elbow reconstruction in an elderly patient with a free anterolateral thigh flap, which relied on intraoperative ICG to evaluate the flap pedicle and map the site of arterial occlusion. Supermicrosurgical instrumentation was employed to perform complex perforator-to-perforator anastomosis following resection of the vascular site of the lesion. These unique applications in a patient of known surgical risk enabled immediate flap salvage, and after 6 months postoperatively, the flap remained healthy with adequate wound healing.
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