Prepubic urethral transposition, with prostatic urethral anastomosis to penile urethra, after severe membrane urethral injury in dog - case report

Abstract

Rupture of the membranous urethra caused by automobile trauma in dogs, accounting for only 5% of genitourinary tract injuries. The higher prevalence in male dogs is noteworthy due to pelvic anatomy and locomotion habits. Clinical signs include edema, anuria, hematuria, pain, and uroperitoneum, requiring an emergency approach. Diagnosis is usually based on history and imaging tests such as ultrasonography and urethrocystography. Treatment varies based on the location of the injury, with surgical intervention being crucial in complete tears. Prepubic urethral transposition with terminal anastomosis from the prostatic urethra to the penile urethra, although little used in veterinary medicine, presents benefits in male dogs, providing a new urinary path without significant aesthetic changes. The case report presents the successful application of this technique in a canine patient with rupture of the membranous urethra due to automobile trauma, aiming to establish an efficient urinary flow without complications and without compromising genital aesthetics.