Document Detail

Risk factors for and outcomes of noncatastrophic suspensory apparatus injury in Thoroughbred racehorses.
MedLine Citation:
PMID:  11318366     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To evaluate effects of toe grabs, exercise intensity, and distance traveled as risk factors for subclinical to mild suspensory apparatus injury (SMSAI) in Thoroughbred racehorses and to compare incidence of severe musculoskeletal injury (MSI) in horses with and without SMSAI. DESIGN: Nested case-control study. ANIMALS: 219 Thoroughbred racehorses racing or in race training. PROCEDURE: Racehorses were examined weekly for 90 days to determine incidence of suspensory ligament injury and monitor horseshoe characteristics. Every horse's exercise speeds and distances were recorded daily. Conditional logistic regression was used to compare exposure variables between incident case (n = 25) and selected control (125) horses. Survival analysis was used to compare time to MSI for horses with (n = 41) and without (76) SMSAI. RESULTS: The best-fitting logistic model for the data included age (< 5 vs > or = 5 years old), toe grab height the week of injury (none vs very low, low, regular, or Quarter Horse height), and weekly distance the week preceding injury (miles). Although the 95% confidence intervals for all odds ratios included 1, the odds for SMSAI appeared to increase with the presence of a toe grab, higher weekly distance, and age > or = 5 years. Horses that had SMSAI were significantly more likely to have a severe MSI or severe suspensory apparatus injury than were horses that did not. CONCLUSIONS AND CLINICAL RELEVANCE: Results suggest that pre-existing SMSAI is associated with development of severe MSI and severe suspensory apparatus injury. Modifying training intensity and toe grab height for horses with SMSAI may decrease the incidence of severe MSI.
A E Hill; S M Stover; I A Gardner; A J Kane; M B Whitcomb; A G Emerson
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Journal of the American Veterinary Medical Association     Volume:  218     ISSN:  0003-1488     ISO Abbreviation:  J. Am. Vet. Med. Assoc.     Publication Date:  2001 Apr 
Date Detail:
Created Date:  2001-04-24     Completed Date:  2001-06-28     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7503067     Medline TA:  J Am Vet Med Assoc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1136-44     Citation Subset:  IM    
Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, University of California, Davis 95616, USA.
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MeSH Terms
Age Factors
Case-Control Studies
Cohort Studies
Collateral Ligaments / injuries*
Horses / injuries*
Logistic Models
Musculoskeletal System / injuries*
Odds Ratio
Physical Conditioning, Animal
Risk Factors
Shoes / adverse effects
Survival Analysis
Time Factors
Treatment Outcome
Wounds and Injuries / epidemiology,  veterinary

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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