Bilateral gluteus maximus transposition for anal incontinence

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Abstract
Seven patients (five women and two men) with anal incontinence in whom previous surgery had failed, were treated by bilateral gluteus maximus transposition. All patients were incontinent to solid stool. Previous surgery was postanal repair in four women and secondary overlapping suture for obstetric tear in one. The two men were treated in childhood for anal atresia. No covering stoma was used. Wound infection occurred in three patients, requiring surgical drainage in two. After follow-up of more than 1 year three patients experienced improved continence but in four continence was unchanged. Anorectal physiology studies showed moderately increased resting and squeeze pressures in patients who were improved by the operation, but none could retain more than 200 ml of viscous fluid instilled into the rectum. No change in rectal sensitivity or volume tolerance was found. This preliminary series does not indicate that better results are obtained by gluteus maximus transposition than by unstimulated graciloplasty.

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