Transpelvic rectus abdominis flap reconstruction of defects following abdominal-perineal resection.

Abdominal-perineal resection for advanced rectal carcinoma may leave a large defect for which complete secondary healing can be slow. In such cases, the inferiorly based rectus abdominis myocutaneous flap, passed through the pelvis into the perineum, can provide a large amount of well-vascularized tissue that may be placed in the defect to facilitate primary healing and allow a quicker recovery. Additional advantages include displacement of the bowel out of the pelvis to facilitate postoperative radiotherapy, and the ability to reconstruct vaginal wall defects. We report a series of seven patients for whom the transpelvic rectus abdominis myocutaneous flap was used to cover perineal defects following abdominal-perineal resection. Although one flap failed, all patients healed rapidly and the only lasting complication was a possibly related small upper-abdominal hernia found one year after surgery.