[Continence preservation in colonic adenomatosis and ulcerative colitis].

The small intestine has a high enzymatic activity, a continuous peristalsis and almost no compliance. The physiological parameters tend to complicate ileoanal anastomosis. For nearly 10 years experiments have been done by pouches, myotomies and myectomies to enlarge the compliance and to stop peristalsis. In some hospitals these sophisticated procedures do not cause any problems, in others they do. There is an average of about 40% of complications. Inspite of all, these operative techniques are accepted by most patients because they prevent the permanent ileostomy. To improve the results, further clinical and experimental studies are necessary.