Iselin U, Steiner A
Department of Large Animal Surgery, University of Zürich, Switzerland.
J Am Vet Med Assoc. 1993 Apr 1;202(7):1123-5.
A radiopaque biofragmentable anastomosis ring was used for end-to-end anastomosis in a 3-month-old calf with a nonreducible umbilical hernia and partial small intestinal obstruction. Recovery was normal, and the ring degraded to several small fragments that passed in the feces between days 18 and 26 after surgery. The calf had normal weight gain; thus, it was slaughtered 9 months after surgery. Adhesions were found to involve 60% of the circumference of the intestine at the site of anastomosis. At histologic examination, the muscular layers were bridged by fibrous tissue. Double-contrast radiography revealed that the luminal diameter at the site of anastomosis corresponded exactly to the ID of the biofragmentable anastomosis ring. This was 69% smaller than the ID of healthy small intestine, because the normal intestine had grown substantially during the 9 months after surgery.
一个不透射线的生物可降解吻合环被用于对一头3个月大患有不可复性脐疝和部分小肠梗阻的小牛进行端端吻合。恢复情况正常，吻合环降解为几个小碎片，并在术后第18天至第26天之间随粪便排出。小牛体重正常增加；因此，在术后9个月将其屠宰。发现在吻合部位，粘连累及肠管周长的60%。组织学检查显示，肌层由纤维组织连接。双重对比造影显示，吻合部位的管腔直径与生物可降解吻合环的内径完全一致。这比健康小肠的内径小69%，因为正常肠管在术后9个月内已大幅生长。
