Preputial damage and lateral penile displacement during castration in a degu

Michelle Y. PowersDepartment of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, WA 99164.

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Bonnie G. CampbellDepartment of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, WA 99164.

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Nickol P. FinchDepartment of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, WA 99164.

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Abstract

Case Description—A 2-month-old male degu was treated for preputial damage and lateral penile displacement that occurred during attempted castration.

Clinical Findings—Bruising and swelling of the prepuce and severe edema to the left of the prepuce were evident. The penis could not be extruded from the prepuce. Radiography revealed a large bladder. Contrast medium injected into the prepuce filled the peripreputial subcutaneous tissues.

Treatment and Outcome—During surgical exploration through a peripreputial approach, the penis was found to be completely separated from the prepuce and located in the adjacent subcutaneous tissue. The penis was repositioned in the prepuce and anchored with a suture at its base. The following day, the preputial orifice was crusted over, urine was leaking from the incision, and the penis could not be extruded from the prepuce. The anchoring suture was removed, and the tip of the penis was sutured to the preputial orifice so that the penis protruded slightly from the prepuce. Urination was normal after the second surgery. Two years later, the preputial orifice remained adhered to the distal portion of the penis and the exposed penile tissue was healthy.

Clinical Relevance—Penile displacement from the prepuce is an unusual complication of castration in degus. The surgical technique used in this animal may be an effective means of repair. Permanent exposure of the tip of the penis may be well-tolerated in degus.

Abstract

Case Description—A 2-month-old male degu was treated for preputial damage and lateral penile displacement that occurred during attempted castration.

Clinical Findings—Bruising and swelling of the prepuce and severe edema to the left of the prepuce were evident. The penis could not be extruded from the prepuce. Radiography revealed a large bladder. Contrast medium injected into the prepuce filled the peripreputial subcutaneous tissues.

Treatment and Outcome—During surgical exploration through a peripreputial approach, the penis was found to be completely separated from the prepuce and located in the adjacent subcutaneous tissue. The penis was repositioned in the prepuce and anchored with a suture at its base. The following day, the preputial orifice was crusted over, urine was leaking from the incision, and the penis could not be extruded from the prepuce. The anchoring suture was removed, and the tip of the penis was sutured to the preputial orifice so that the penis protruded slightly from the prepuce. Urination was normal after the second surgery. Two years later, the preputial orifice remained adhered to the distal portion of the penis and the exposed penile tissue was healthy.

Clinical Relevance—Penile displacement from the prepuce is an unusual complication of castration in degus. The surgical technique used in this animal may be an effective means of repair. Permanent exposure of the tip of the penis may be well-tolerated in degus.

Contributor Notes

Address correspondence to Dr. Campbell.
  • 1.

    Johnson D. What veterinarians need to know about degus. Exotic DVM 2002;4:3942.

  • 2.

    Lee TM. Octodon degus: a diurnal, social, and long-lived rodent. ILAR J 2004;45:1424.

  • 3.

    Inestrosa NC, Reyes AE, Chacon MA, et al. Human-like rodent amyloid-beta-peptide determines Alzheimer pathology in aged wild-type. Octodon degu. Neurobiol Aging 2005;26:10231028.

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 4.

    Bennett RA, Mullen HS. Guinea pigs, chinchillas, and prairie dogs: soft tissue surgery. In: Quesenberry KE, Carpenter JW, eds. Ferrets, rabbits, and rodents: clinical medicine and surgery. 2nd ed. St Louis: WB Saunders Co, 2003;274284.

    • Search Google Scholar
    • Export Citation
  • 5.

    Capello V. Prescrotal open technique for neutering a degu. Exotic DVM 2005;6:2931.

  • 6.

    Johnson D. Small rodent husbandry, behavior and disease, in Proceedings. Atlantic Coast Vet Conf 2006. Available at www.vin.com/Members/Proceedings/Proceedings.plx?CID=ACVC2006&O=VIN. Accessed Jun 18, 2007.

    • Search Google Scholar
    • Export Citation
  • 7.

    Bennett RA, Mullen HS. Small rodents: soft tissue surgery. In: Quesenberry KE, Carpenter JW, eds. Ferrets, rabbits, and rodents: clinical medicine and surgery. 2nd ed. St Louis: WB Saunders Co, 2003;316328.

    • Search Google Scholar
    • Export Citation
  • 8.

    Bellah JR, Spencer CP, Salmeri KR. Hemiprostatic urethral avulsion during cryptorchid orchiectomy in a dog. J Am Anim Hosp Assoc 1989;25:553556.

    • Search Google Scholar
    • Export Citation
  • 9.

    Tynes VV. Drug therapy in pet rodents. Vet Med (Praha) 1998;93:988995.

  • 10.

    Plumb DC. Plumb's veterinary drug handbook. 5th ed. Stockholm, Wis: PharmaVet Inc, 2005;295298.

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