Subtotal penile amputation and preputial urethrostomy in a dog
Michael M Pavletic1, Susan A O'Bell
1Department of Surgery, Angell Animal Medical Center, 350 S Huntington Ave, Boston, MA 02130, USA.
Journal of the American Veterinary Medical Association
|February 3, 2007
Summary
A novel surgical technique, preputial urethrostomy, was used to treat penile necrosis in a Shih Tzu. This method allows dogs to urinate through the preputial orifice, avoiding skin irritation.
Area of Science:
- Veterinary Surgery
- Canine Urology
Background:
- Penile necrosis secondary to strangulation from paraphimosis presents a surgical challenge in dogs.
- Conventional urethrostomy procedures can lead to local skin irritation.
Observation:
- A 6-year-old castrated male Shih Tzu presented with intermittent hematuria.
- Physical examination revealed penile necrosis extending from the preputial fornix.
Findings:
- Surgical intervention involved penile amputation and anastomosis of the urethra to the preputial mucosa.
- This created a preputial urethrostomy, enabling urination through the preputial orifice.
Implications:
- Preputial urethrostomy offers a viable alternative to conventional techniques, particularly when penile amputation is necessary.
- This technique simplifies the surgical procedure and minimizes postoperative complications like skin irritation.


