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  • Author or Editor: Michael A. Livesey x
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in Journal of the American Veterinary Medical Association
in Journal of the American Veterinary Medical Association

Abstract

Objective—To evaluate long-term outcome of repair of femoral capital physeal fractures with 7.0-mm cannulated screws in juvenile bulls that weighed > 350 kg (770 lb).

Design—Retrospective study.

Animals—20 bulls.

Procedure—Medical records of affected cattle were identified and reviewed. Follow-up information was obtained by means of a written questionnaire, 1 to 15 years after discharge, from the veterinarians who supervised the postoperative care at bull stud facilities.

Results—Mean age and body weight at time of repair were 19 months (range, 11 to 27 months) and 513 kg (1,128.6 lb; range, 364 to 720 kg [800.8 to 1,584 lb]), respectively. Surgical repair was performed with 7.0- mm cannulated screws. A second surgery to replace malpositioned implants was required in 1 bull. Fourteen of the 20 bulls were considered serviceable for semen collection after surgical repair, and persistent lameness was evident in 11 of the 14. Mean duration for bulls to become serviceable was 5.5 months (range, 2 to 11 months). Age, weight, duration of injury at the time of repair, and degree of reduction did not have a significant effect on whether surgical repair was successful. Six bulls remained severely lame and were euthanatized.

Conclusions and Clinical Relevance—Results indicated that surgical repair of femoral capital physeal fractures in adolescent bulls with 7.0-mm cannulated screws placed in lag fashion has a good prognosis for long-term function in a semen collection facility. (J Am Vet Med Assoc 2005;227:964–969)

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in Journal of the American Veterinary Medical Association

Abstract

Objective—To describe signalment; surgical findings; short-, medium-, and long-term outcome; and recurrence rate for cattle undergoing celiotomy because of jejunal hemorrhage syndrome (JHS) and to analyze risk factors associated with outcome and recurrence.

Design—Retrospective case series.

Animals—31 dairy cattle with JHS.

Procedures—Medical records were analyzed. Follow-up information was obtained from owners of cattle surviving until discharge.

Results—18 of 31 (58%) cattle undergoing celiotomy survived to initial discharge. Fifteen (48%) and 13 (42%) were alive 6 and 12 months after discharge, respectively. All 5 deaths within 12 months after discharge were attributed to JHS recurrence. Survival time was 12 to 85 months for the 13 long-term survivors. Six of 7 that died > 12 months after celiotomy did so for reasons unrelated to JHS. Recurrence rate among short-term survivors was 7 of 18; 1 of these survived long-term. A significant proportion of affected cattle were Brown Swiss, compared with proportions for other breeds. Manual massage of the bowel to break down clots was associated with a significantly higher short-term survival rate than was en-terectomy or enterotomy. Medium- and long-term survival rate was higher in cattle referred 24 to 48 hours after onset of signs. Length of obstructing blood clots was not associated with outcome. Other factors were not significantly associated with recurrence.

Conclusions and Clinical Relevance—Survival rates were higher than those in other reports. Prompt celiotomy and resolution by use of manual massage were associated with higher survival rates. In this population, JHS recurred in 7 of 18 short-term survivors.

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in Journal of the American Veterinary Medical Association