Group B developed parastomal hernia more frequently within a significantly shorter period. A permanent sigmoid colostomy created through the extraperitoneal route can prevent the incidence of parastomal hernia after laparoscopic abdominoperineal resection.

The RA anastomosed to the aorta appears to have good long-term outcomes, similar to the RITA as the second arterial graft. Furthermore, the choice of RA avoids sternal complications and shortens the operation time compared to the use of BITA.

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