Comparative results of three different techniques for colonic anastomosis in the dog

Three different techniques of colonic anastomosis were evaluated in the dog. Left hemicolectomy and two layer anastomosis were performed in ten dogs, one layer anastomosis in ten dogs and sleeve anastomosis in ten dogs. In each group, five dogs were sacrificed on the second postoperative day, and the anastomotic specimen was studied by a bursting test. The remaining five dogs were sacrificed seven days after operation, and the specimen was studied by hydroxyproline dosage and by microscopy. The bursting test showed a significant difference between sleeve anastamosis and other techniques. The results of hydroxyproline dosage showed no significant differences between the different anastamotic techniques.