Abstract:Abstract: Objective?To use propensity score matching to compare long-term outcomes after laparoscopic-assisted and open colectomy for splenic flexure cancer (SFC).?Methods?Clinical data of 124 SFC patients underwent colectomy from January 2010 to January 2017 were retrospectively analyzed. According to the surgical approach were used, the patients were categorized into laparoscopy group and open group. The patients were matched at a ratio of 1 : 1 using PSM, with the match variables including gender, body mass index, clinical stage, and American Society of Anesthesiologists score. 48 patients in each group were ultimately included in this study and their short- and long-term outcomes were compared.?Results?Compared with the open group, the laparoscopy group had less blood loss, faster postoperative recovery, and shorter hospitalization stay. There was no statistically significant difference in the incidence of postoperative 30 day minor or major complications between the two groups. The intraoperative mortality and postoperative 30-day mortality were all 0% between the two groups. There was no statistically significant difference in pathological results between the two groups. There was no statistically significant difference in the tumor recurrence, 5-year overall survival, and 5-year disease-free survival rates between the two groups.?Conclusion?Laparoscopic-assisted colectomy for SFC had the same long-term outcome as open colectomy.