“The number of intersections of staple lines is associated with anastomotic leakage, and the inversion technique is a useful method for avoiding anastomotic leakage. Using an appropriate technique by skilled operator, double stapling technique for laparoscopic
anterior resection is safe and feasible.”

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Laparoscopic intracorporeal colorectal anastomosis with double stapling technique is difficult because of the unsuitable cutting angle associated with using a linear stapler in the narrow pelvic cavity. Consequently, we sometimes have used multiple stapler firings during division of the rectum. Because of the long and tilted linear staple line placed on the rectal stump, a circular anastomotic plane can create multiple intersections of staple lines and dog-ears. Anastomotic leakage is a major problem in patients with colorectal cancer who have
undergo laparoscopic surgery. Despite technical improvements in laparoscopic surgery, recent studies have reported that the anastomotic leakage rate remains at 6.3% to 13.7%.” (Lee)