Comparison of J-pouch and coloplasty pouch for low rectal cancers: a randomized, controlled trial investigating functional results and comparative anastomotic leak rates.

Objective: To assess the efficacy of a novel coloplasty colonic pouch design in optimizing bowel function after ultralow anterior resection.

Summary Background Data: A colonic J-pouch may reduce excessive stool frequency and incontinence after anterior resection, but at the risk of evacuation problems. Experimental surgery on pigs has suggested that a coloplasty pouch (CP) may be a useful alternative.