Free Omental Flap for Tissue Defect Coverage after Resection of Complicated Venous Malformation in the Area of the Knee

Annals of Vascular Surgery
Nicla SettembreSerguei Malikov

Abstract

Venous malformations are the most common slow-flow vascular malformations; they are not prone to volume decrease over time, and invasive treatment is usually required. There are 2 main techniques to address the definitive therapy of these lesions, sclerotherapy and surgical excision, each with its own advantages and disadvantages. We report the case of a 56-year-old man who came to our attention with persistent pain after multiple unsuccessful attempts to treat a large venous malformation located in the area of the right knee. After radical excision of the painful lesion, we covered the resulting major tissue loss (20 cm × 15 cm) with a free omental flap. The arterial and venous anastomoses were on the region above the knee pedicles. The postoperative course was uneventful. A secondary skin grafting was performed. The patient is doing well at 1-year follow-up. The omental flap may be a bailout solution for tissue loss coverage in the knee area when the use of the common fascia-cutaneous or muscular flaps is not possible.

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