Sphincter-saving surgery for rectal and colorectal disorders

Background: Restoration of intestinal continuity by anal anastomosis after sphincter-saving rectal excision is feasible from an oncological, technical and functional standpoint. We present our experience. Methods: The records of 223 patients with an anal anastomosis were reviewed. The anal anastomosis was performed hand-sutured transanally in 92 patients and double-stapled transabdominally in 131 patients. Coloanal anastomosis was performed in 39 patients and ileoanal pouch anastomosis in 184 patients. Results: Operation time, blood loss and admission times were considerably less after double-stapling anastomosis. Relevant complications occurred in 15% after coloanal anastomosis and in 35% after ileoanal pouch anastomosis, failure rate was similar (13%). Complication (7% vs 43%) and failure rate (2% vs 27%) were less after double-stapled anastomosis. Prednisone did not influence the failure rate whereas previous abdominal surgery did. Conclusions: The double-stapling technique gives less complications and better results although effects of a learning curve are undoubtedly present in this series. The technique makes a temporary diverting ileostomy superfluous. The double-stapling technique is to be preferred for anal anastomoses.