Adjuvant postoperative radiotherapy in carcinoma of the rectum and recto-sigmoid.

The adjuvant postoperative irradiation is an efficient treatment method to diminish the chance on pelvic recurrences in high risk group patients having rectosigmoid or rectumcarcinomas Dukes B or C and/or in case of positive surgical margins. We reviewed the literature and our own patient material treated at the University Hospital Utrecht in the years 1980-1983. Our results are comparable with the results published in Boston. Because of the high percentage local recurrence in the perineum following APR, we changed our technique and dose. Our results from 1980-1983 and the technique and dose used since 1985 is described. We also recommend some preventive measures to lower the complication rate.