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that the type of shoes worn by racehorses might play a role in catastrophic injuries, but previously, there were no scientific studies to sup, port the theory. After three years of study funded by the Grayson-Jockey Club Research Foundation Inc., the UC Davis Center for Equine Health and private donors, researchers concluded that there was an association between toe grabs and an increased risk of fatal injury, particularly suspensory apparatus failure.
Experimental approach
Shod hooves were collected from 201 horses submitted to the CVDLS through the CHRB post-mortem program from Aug. 1992 through July 1994. The presence or absence of toe grabs and rims on shoes were recorded for all four limbs of each horse in the study.
If present, the height of the toe grabs was recorded as low 14mm), regular (6mm), or high (8mm). The age and gender of each horse was recorded as well as details of the type of injury and/or cause of death. All fatal injuries were studied as a group as well as the most common type of injury, suspensory apparatus failure.
For comparison to the iryured horses, horses that died for reasons unrelated to the musculo-skeletal system (e.g., colic) were used as controls. Relative changes in the odds of injury
See SHOES, Page15
il V
94.5%