The duration of 3D surgery was shorter than 2D (115.6±26.1 vs 136.5 ± 27 minutes), blood loss during surgery (11.5 ± 6 ml vs 12.1 ± 7ml), the number of dissected lymph nodes (14.9 ± 4.7 vs 15 ± 3.2 nodes), time of passing gas were 3 vs 3, 5 day, time of postoperative hospital stay were 7 vs 8 days and postoperative complication rate were 3.8% vs 4.8%.