Use of transpelvic rectus abdominis musculocutaneous flap for anal cancer salvage surgery

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Abstract
Background: Perineal wounds following abdominoperineal resection (APR), for persistent or locally recurrent anal cancer, are associated with poor healing secondary to irradiation therapy. The results of APR combined with a vertical rectus abdominis musculocutaneous (VRAM) flap transposed transpelvically to cover the perineal defect are presented. Methods: Between 1994 and 2000, 105 patients were diagnosed and treated for anal cancer. Twenty-two (21 per cent) underwent a salvage operation owing to persistent or locally recurrent disease. In eight patients, before 1996, the perineum was closed primarily with serious wound complications in five. In the final 14 patients, primary perineal reconstruction with a VRAM flap was performed. Results: Median age was 65·5 (range 45–78) years. Median follow-up was 14·5 (range 3–41) months. There were no flap-related complications and primary healing was achieved in all patients. Median hospital stay was 17 (range 14–72) days. There were two major complications related to the laparotomy and abdominal closure. Conclusion: Combining the salvage operation with a VRAM flap facilitates primary healing after surgical treatment for persistent or locally recurrent anal cancer. A single-stage primary reconstructive procedure is feasible, with an acceptable complication rate and high level of patient satisfaction.

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