Abstract
Use of the free groin flap, one of the first microvascular free flaps described, has been neglected recently because it has a short pedicle and varies anatomically. However, we have found its anatomical features and type of tissue ideal for volumetric enhancement in severe hemifacial asymmetry. We present a retrospective review of a consecutive series of 14 patients who had hemifacial augmentation with a free groin flap (mean age at operation 17 years, range 10–42) since 2001, and discuss the surgical technique. The most common cause of asymmetry was hemifacial microsomia (n=6). Anatomical variation of the vessels in the groin did not cause problems. Arterial anastomosis was to the facial artery in 13 patients; 12 patients had simultaneous hard tissue procedures. No flaps failed. The free groin flap is a useful adjunct in the management of hemifacial deficits in volume when free fat grafts will not provide enough bulk. Although the operation can take longer than non-vascularised grafts, little tissue is lost so long-term results may be more predictable. We have found the anatomy fairly consistent and the short pedicle caused no problems.
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