Fig. 1

The procedure of two different anastomosis methods for right-sided colon cancer. A After excision of the mass, the small intestine and colonic stump were closed with a stapler. B The common opening formed by the two intestinal sites after closure, I and H, are the meeting points of the junction between the anastomotic nail and the stump. C To ensure a straight line between I and H points when closing the common stump of ileocolonic, and I and H are the starting and ending points, the interrupted suture method (approximately 5–7 stitches for lifting and fixation) is used between the starting and ending points. D All sutures were lifted, and the common stump was closed with a disposable linear stapler, with the common opening forming a horizontal line. E After closing the common opening, the anastomosis is annular at this time. F I and H points in the control group were close to or overlapped when the ileocolonic lateral anastomosis was performed. G After the closure of the common stump in the control group, the anastomosis had a cruciform shape