Abstract
The aim of this study was to evaluate the incidence of incisional hernia formation after laparoscopic and open surgery for colorectal cancer. A retrospective analysis was conducted of 1057 colorectal cancer resection cases (289 laparoscopic, 768 open) performed in a single national laparoscopic training centre between January 2006 and December 2011. Clinical notes and serial computed tomography scans were reviewed, with any incisional hernia including those at a surgical incision, port site, stoma and stoma closure site identified and the size of the defect measured. The overall incisional hernia rate was 14.8%. There was no significant difference between the open and laparoscopic groups (14.4% vs 15.9%, P = 0.566). Excluding stoma-related hernia, 10.7% of the open group developed a surgical wound hernia, and 11.1% of the laparoscopic group developed a hernia at a port site, extraction site or surgical midline incision. There was no statistical difference between the two groups (P = 0.853). The defects were smaller in the laparoscopic group (P < 0.005). There were significantly more parastomal hernias in the laparoscopic group (40%) than in the open group (12.7%, P < 0.001). The incidence of incisional hernia formation was similar after laparoscopic or open surgery for colorectal cancer. Parastomal hernia was more frequent after laparoscopic surgery.
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