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  • Author or Editor: Guy St. Jean x
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Objective—To evaluate signalment, surgical treatment, postoperative complications, and future breeding success or semen production in a group of bulls with naturally occurring disease of the scrotum or testis.

Study design—Retrospective study.

Animals—21 bulls that underwent unilateral castration after evaluation for scrotal swelling.

Procedure—A computer-assisted search of medical records at 2 veterinary teaching hospitals was performed. Historical, diagnostic, surgical, and follow-up data were collected and analyzed for those bulls with scrotal swelling that underwent unilateral castration.

Results—Four of 5 pasture breeding bulls and 9 of 10 semen collection-center bulls successfully bred cows or produced viable semen within 6 months of surgery. Fourteen of 21 surgical procedures were performed after induction of general anesthesia. Sixty-six percent of procedures were performed as open castrations. Seventy-one percent of bulls developed postoperative complications, most of which were mild swellings. Unilateral castration returned 13 of 15 bulls with unilateral disease of the scrotum or testis to productive service by 6 months after surgery.

Conclusion and Clinical Relevance—Unilateral castration is an effective treatment for unilateral disease of the scrotum or testis in bulls, allowing return to reproductive function. (J Am Vet Med Assoc 2002; 220:1198–1202)

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in Journal of the American Veterinary Medical Association


Objective—To determine risk factors for development of sequestra in cattle and identify factors associated with a successful outcome.

Design—Retrospective study.

Animals—110 cattle.

Procedure—Medical records of cattle treated at veterinary teaching hospitals in North America were reviewed. To determine risk factors for osseous sequestration, breed, age, and sex of cattle with osseous sequestration were compared with breed, age, and sex of all other cattle admitted during the study period.

Results—110 cattle were included in the study. Three had 2 sequestra; thus, 113 lesions were identified. Most sequestra were associated with the bones of the extremities, most commonly the third metacarpal or third metatarsal bone. Ninety-two animals were treated surgically (ie, sequestrectomy), 7 were treated medically, 3 were initially treated medically and were then treated surgically, and 8 were not treated. Follow-up information was available for 65 animals treated surgically and 6 animals treated medically. Fifty-one (78%) animals treated surgically and 5 animals treated medically had a successful outcome. Cattle that were 6 months to 2 years old had a significantly increased risk of developing a sequestrum, compared with cattle < 6 months old. Cattle in which sequestrectomy was performed with the aid of local anesthesia were significantly more likely to undergo 2 or more surgical procedures than were cattle in which sequestrectomy was performed with the aid of general anesthesia.

Conclusions and Clinical Relevance—Results suggest that sequestrectomy will result in a successful outcome for most cattle with osseous sequestration. (J Am Vet Med Assoc 2000;217:376–383)

Full access
in Journal of the American Veterinary Medical Association