Closure of the primary opening of a fistula tract using a suturable biologic anal fistula plug is an effective method of treating anorectal fistulas. The method seems to be more reliable than fibrin glue closure. The greater efficacy of the fistula plug may be the result of the ability to suture the plug in the primary opening, therefore, closing the primary opening more effectively. Further prospective, long-term studies are warranted.

Coloanal anastomosis for distal rectal cancer has favorable long-term outcomes. Pelvic radiotherapy has an adverse effect on subsequent bowel function (whether given preoperatively or postoperatively) in patients who maintain intestinal continuity. Loss of intestinal continuity after a coloanal anastomosis is associated with diminished quality of life.

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