Functional analysis of anorectal junction: defecography.

The radiograms and videotape recordings from 32 defecographies in patients with defecation complaints were retrospectively analyzed. The patients had been examined in an upright position during stooling of a barium contrast medium. All patients had had a double contrast colon examinations which was normal. Internal procidentia was found in 20 patients, enterocele in 9 patients, proctocele in 10 patients, a defective opening of the anorectal junction which was ascribed to incoordination of the puborectal sling was present in 15 patients. Most patients had a variety of concomitant dysfunctions.