Risk factors for proximal sesamoid bone fractures associated with exercise history and horseshoe characteristics in Thoroughbred racehorses

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Abstract

Objective - To assess individual and combined associations of high-speed exercise and horseshoe characteristics with risk of forelimb proximal sesamoid bone fractures and proximal sesamoid bone midbody fractures in Thoroughbred racehorses. Animals - 269 deceased Thoroughbred racehorses. Procedures - A case-control study design was used to compare 121 horses with a fracture of at least 1 of 4 forelimb proximal sesamoid bones (75 horses had a midbody fracture) and 148 horses without a forelimb proximal sesamoid bone fracture. Univariable and multivariable logistic regression analyses were used to evaluate potential risk factors for association with proximal sesamoid bone fracture. Results - Compared with horses that died without proximal sesamoid bone fractures, horses that died with proximal sesamoid bone fractures were more likely to be sexually intact males, spend more time in active training and racing, complete more events, train and race longer since their last layup, have higher exercise intensities during the 12 months prior to death, and have greater cumulative distances for their career. Horses with proximal sesamoid bone midbody fractures were more likely to be sexually intact males, train and race longer since their last layup, and have higher exercise intensities during the 12 months prior to death. Conclusions and Clinical Relevance - Limiting exercise intensity and the continuous time spent in activity during a horse's career may decrease the frequency of forelimb proximal sesamoid bone fractures in Thoroughbred horses.

Original languageEnglish (US)
Pages (from-to)760-771
Number of pages12
JournalAmerican Journal of Veterinary Research
Volume68
Issue number7
DOIs
StatePublished - Jul 2007

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Sesamoid Bones
sesamoid bones
bone fractures
racehorses
Bone Fractures
Horses
exercise
risk factors
Exercise
history
horses
Forelimb
forelimbs
death
case-control studies
Case-Control Studies
Logistic Models
experimental design
Regression Analysis

ASJC Scopus subject areas

  • veterinary(all)

Cite this

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title = "Risk factors for proximal sesamoid bone fractures associated with exercise history and horseshoe characteristics in Thoroughbred racehorses",
abstract = "Objective - To assess individual and combined associations of high-speed exercise and horseshoe characteristics with risk of forelimb proximal sesamoid bone fractures and proximal sesamoid bone midbody fractures in Thoroughbred racehorses. Animals - 269 deceased Thoroughbred racehorses. Procedures - A case-control study design was used to compare 121 horses with a fracture of at least 1 of 4 forelimb proximal sesamoid bones (75 horses had a midbody fracture) and 148 horses without a forelimb proximal sesamoid bone fracture. Univariable and multivariable logistic regression analyses were used to evaluate potential risk factors for association with proximal sesamoid bone fracture. Results - Compared with horses that died without proximal sesamoid bone fractures, horses that died with proximal sesamoid bone fractures were more likely to be sexually intact males, spend more time in active training and racing, complete more events, train and race longer since their last layup, have higher exercise intensities during the 12 months prior to death, and have greater cumulative distances for their career. Horses with proximal sesamoid bone midbody fractures were more likely to be sexually intact males, train and race longer since their last layup, and have higher exercise intensities during the 12 months prior to death. Conclusions and Clinical Relevance - Limiting exercise intensity and the continuous time spent in activity during a horse's career may decrease the frequency of forelimb proximal sesamoid bone fractures in Thoroughbred horses.",
author = "Anthenill, {Lucy A.} and Stover, {Susan M} and Ian Gardner and Hill, {Ashley E}",
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