The Use of Bilayered Fascia Lata With an Interpositional Omental Flap for Autologous Repair of Contaminated Abdominal Fascial Defects

Introduction: Contaminated abdominal fascial defects, such as those seen in enterocutaneous fistula, or wound dehiscence with mesh exposure, are a significant source of morbidity and present unique reconstructive challenges. We present our technique of using the fascia lata, augmented with an interpositional omental flap, for complete autologous reconstruction of contaminated fascial defects, and the postoperative results of 3 cases. Methods: Three patients with contaminated abdominal defects underwent wound debridement/fistula resection and immediate reconstruction with fascia lata and omentum flap. Defect size ranged from 15 × 8 cm (120 cm2) to 25 × 12 cm (300 cm2). The fascia lata graft was inset using an underlay technique, and the omentum was tunneled through a subcostal slit in the semilunar line to augment the vascularity of the subcutaneous plane and protect the graft. Skin coverage was achieved by undermining and direct closure or local myocutaneous flaps. Results: Three patients underwent abdominal wall reconstruction with our technique. The median follow-up was 12 months. There were no recurrent infections, fistulae, or herniae. All patients experienced full functional recovery with return to independent activities of daily living by 6 months postoperatively. Conclusions: Since the use of synthetic material is contraindicated in contaminated abdominal fascial defects. We propose that our combination of fascia lata and an interpositional omental flap is a useful technique for the reconstruction of these challenging defects.

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