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  • Author or Editor: Jorge L. Sanclemente x
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Abstract

CASE DESCRIPTION

A 12-year-old Friesian stallion was examined because of a 1-year history of preputial injury and urination through a urethrocutaneous fistula located at the midbody of the ventral aspect of the penis.

CLINICAL FINDINGS

Physical examination revealed an opening with a clearly apparent mucocutaneous junction 12 cm from the distal opening of the urethra on the ventral left side of the penis. Endoscopic examination of the distal portion of the urethra confirmed a blind pouch with no communication with the fistula or proximal portion of the urethra.

TREATMENT AND OUTCOME

A temporary perineal urethrostomy was performed with sedation and local anesthesia, with the stallion standing, to divert urine from the urethral reconstruction site. Fistulectomy and urethral resection and anastomosis were performed under general anesthesia with the stallion in dorsal recumbency. At 15 days after surgery, endoscopic examination of the urethra revealed distortion of the urethral lumen at the fistulectomy site. Under sedation, the urethra was dilated for 5 minutes every 12 hours for 3 days. At 22 days after surgery, endoscopic examination of the urethra revealed a healed anastomosis site and a large urethral luminal diameter. At 36 months after surgery, the owner reported that the stallion had normal micturition and had sired multiple foals by live cover matings.

CLINICAL RELEVANCE

Severe preputial or penile trauma in horses is most commonly treated with amputation because of concerns of postoperative urethral stricture and occlusion. To the authors' knowledge, this case represented the first time that a successful end-to-end anastomosis of the distal portion of the urethra has been performed in a stallion.

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in Journal of the American Veterinary Medical Association

Abstract

OBJECTIVE

To describe a technique for basihyoid-ceratohyoid disarticulation (BCD) in standing sedated horses affected by temporohyoid osteoarthropathy (THO) and report outcomes for horses that underwent the procedure.

ANIMALS

6 client-owned horses.

PROCEDURES

Electronic medical records of a veterinary teaching hospital were searched to identify horses that underwent BCD for treatment of THO from 2018 to 2019. Signalment, clinical data, use of the horse, and complications were recorded. Follow-up data obtained by telephone interview with owners included the clinical outcome and time to improvement after surgery, any persistent clinical signs, horse's activity level before onset of clinical signs and after BCD, subsequent use of the horse, and whether they would pursue the same treatment again.

RESULTS

All horses tolerated the procedure well, with no complications and improved neurologic function after BCD. Five of 6 horses had a reported activity level equal to or greater than that prior to having signs of THO. Three of 3 horses with acute ataxia prior to BCD reportedly had full resolution of this sign; 3 of 4 horses with facial nerve deficits prior to BCD had mild residual facial nerve deficits at follow-up. All owners indicated they would pursue BCD again.

CONCLUSIONS AND CLINICAL RELEVANCE

The BCD procedure was performed safely in this sample of THO-affected horses that were sedated while standing, avoiding risks associated with general anesthesia and resulting in no adverse effects such as iatrogenic injury to neurovascular structures. (J Am Vet Med Assoc 2021;259:300–305)

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in Journal of the American Veterinary Medical Association