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Research Note: Caudal Articular Process Dysplasia

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Thoracic caudal articular process dysplasia has been considered a breed-specific disorder in pugs, with a minority of affected dogs developing clinical signs of spinal cord dysfunction. This retrospective, cross-sectional study of CT scans of 271 dogs presented for nonspinal cord-related disease found that 97% of presented pugs, as well as 70.4% of French bulldogs and 84.1% of English bulldogs, showed evidence of caudal articular process dysplasia. Prevalence of caudal articular process aplasia was up to 8-fold higher between T10 and T13 in pugs as compared with French or English bulldogs, possibly explaining the higher prevalence of clinical sequelae in pugs.


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