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Results Patient age, gender, body mass index, American Society of Anesthesiologists (ASA) score, previous abdominal surgery, intraoperative blood loss, tumor size, tumor stage, specimen length, distance of tumor from the anal verge, and operative time were comparable between the two groups. Overall rate of leakage was 4.5% (10/22. The frequency of leakage was 3.3% (4/12 in TDT group and was 6.0% (6/10 in NTDT group. The rate of leakage was significantly lower in TDT group (p less then 0.05). Furthermore