Surgical repair of third-degree perineal lacerations with rectovestibular fistulae in dairy cattle: a series of four cases (2010–2018)

Abstract

We describe the successful surgical repair of third-degree perineal lacerations with rectovestibular fistulae in four cases using the single-stage modified Aanes method with purse-string suture of the vaginal vestibule and rectum. Fistulae formation and dehiscence of the repair were not observed after surgery. Two cows had five calves and one cow had four calves after surgery. The pregnant cows delivered normally. Additionally, there was no dehiscence of the suture line during the subsequent parturition. The breeding and fertility results obtained after the surgery are presented. According to the results of the present study, the modified Aanes method for the repair of third-degree perineal lacerations with rectovestibular fistulae appears to have a good prognosis for fertility following surgery in cows.

Reconstruction of third-degree perineal lacerations in female camels (<i>Camelus dromedarius</i>) using a modified Goetz one-stage repair technique

“…In addition, the three-line closure technique provides strength, a wide rectovestibular shelf, and a potent seal preventing fecal contamination. Similar findings have been reported in mares [5,9] and cattle [13,14] with TDPLs.…”

“…TDPL results in the disruption of the perineal body, anal sphincter, floor of the rectum, and ceiling of the vestibule, resulting in an abnormal connection between the vestibule and rectum [12]. This eventually causes endometritis and leads to infertility detrimental to milk production, reproductive efficiency, and productive lifespan of the affected animal [14]. TDPLs are usually related to rapid extractive delivery, abnormally positioned or large-sized fetuses, delayed parturition, and inappropriate manual manipulation.…”