Use of the biofragmentable anastomosis ring led to no significant differences in clinical results when compared with the use of conventional suture techniques. The patients' prognosis and the efficiency of perioperative portal chemotherapy are impaired by perioperative blood transfusions in colorectal cancer. Regarding proved risk factors for development of local recurrence, there is no significant difference between low anterior resection and abdominoperineal excision. Lymph node dissection is one important factor for ensuring an adequate oncological strategy in colorectal surgery.