牛の実験的穿孔性乳頭切創に対する各種縫合法の治癒経過

Abstract

The healing process in various suture patterns for experimentally induced perforating teat wound in 32 teats of cows was studied. These were sutured using the Steere-Moody suture (SM), Utrecht method (UM) and Gambee suture (GS). Time course changes were macroscopically, radiographically and histopathologically observed.A marked disorder in the muscle fibers, and a fusion defect in the skin and mucosa and stenosis of the teat sinus due to severe edema were seen on the 10th day after SM and UM suturing. However, very little muscle fiber disorder, perfect fusion and regeneration of the skin and mucosa were observed 5-7 days after GS suturing. Though hematoma and edema in the muscle fibers for all suture patterns in the cross-incision was more severe than that of a longitudinal incision, the healing process in cross-incision was the same as that of the longitudinal incision in GS.The results indicate that the simple interrupted suture pattern, which perforates the mucosa, i.e., GS, in the repair of a perforating teat wound can prevent the formation of teat fistula and/or resultant teat sinal stenosis.