Perineal rectosigmoidectomy (Altemeier's procedure): a review of physiology, technique and outcome.

Perineal rectosigmoidectomy (Altemeier's procedure), as used for the surgical treatment of full-thickness rectal prolapse, has a long history. The physiological derangement in patients with rectal prolapse is complex, frequently showing impairment of the rectoanal inhibitory reflex, intermittent high-pressure rectal motor activity, disturbances in anorectal sampling and attendant pudendal neuropathy. There are currently few defined preoperative factors in patients presenting with rectal prolapse and fecal leakage which predict for the restoration of continence after surgery. This review describes our technique of Altemeier's procedure and analyzes the reported results of this operation, presenting those studies which assessed postoperative continence and prolapse recurrence in particular. The lack of prospective randomized data regarding this perineal approach makes clinical interpretation difficult at the present time.