The influence of 4/Oplain catgut, 4/0 silk and 4/0 nylon suture materials, on the process of repair of the inversting end-to-end in testinal anastomosis were studied in three groups, each of 18 dogs, examined at intervals of 7, 15, 30 days.
The catgut suture material was superior than nylon and silk in that, it causes the least cellular reaction and undetectable tissue alteration. The healing process was completed at 15 days at the end of which the catgut was completely absorbed. At the end of one month the intestedinal diameter, wall thickness, lumen diameter at the operation site returned to normal. Catgut caused the most smallest diap < strong>hram inside the lumen of the intestine.