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The transpelvic rectus abdominis flap: its use in the reconstruction of extensive perineal defects.

We present our experience of rectus abdominis flaps tunnelled transpelvically in 12 patients (mean age 48.4 years, range 19-72 years) with a diverse range of surgical pathologies, the largest reported series to date. Satisfactory obturation of the pelvic cavity and control of radionecrotic tissue sepsis was achieved. Average duration of hospital stay was 17.6 days with a mean follow-up of 18.7 months. The rectus abdominis flap provides a significant volume of well-vascularised tissue, ideally suited for reconstruction of extensive perineal defects after tumour ablative surgery. When tunnelled transpelvically, the flap is unique in its ability to obturate the pelvic inlet, eliminating the distressing complication of perineal bowel herniation and allowing for perineal radiotherapy.