Clinical significance of closure of mesenteric defects in laparoscopic colectomy: A single-institutional cohort study

Background: The effect of closure of mesenteric defects to prevent complications, such as internal hernia, during laparoscopic colectomy remains controversial and is a subject of debate. Purpose: This retrospective single-institution study aimed to clarify the clinical significance of mesenteric defect closure during a laparoscopic colectomy. Methods: We evaluated 58 patients who underwent laparoscopic right-side colectomy or transverse colectomy. The statistical relevance of complications, surgical maneuvers, and clinical factors was examined. Results: The mesenteric defects were closed in 30 patients and not closed in 28 patients. Two patients with ileus and 1 with a deep incisional surgical site infection required a second surgery. The reoperation rate was significantly higher in the nonclosure group than in the closure group (11% vs. 0%, respectively; P=0.033). Consideration: Serious complications requiring reoperation occurred only in the nonclosure group. The procedure for closing the defect did not extend the operation time or increase the bleeding.