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Peer-reviewed veterinary case report

Horse with lameness diagnosed with atlanto-axial malformation

By Cole, Robert et al.·Published in The Canadian veterinary journal = La revue veterinaire canadienne·2017·Auburn University, United States·View original on PubMed

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Original publication title: Atlanto-axial malformation in an adult Quarter horse gelding.

Species:
horse

Plain-English summary

A male Quarter horse gelding, who is an adult, was seen for a problem with his front legs that made him limp on both sides for about two years. During the examination, the vet noticed that he had some issues with coordination and movement, but his brain and nerve functions were normal. X-rays and a detailed examination after death revealed a new type of malformation in the area where the first two neck vertebrae meet, which might have been present since birth.

Abstract

An adult gelding was evaluated for bilateral intermittent forelimb lameness of approximately 2 years duration. The horse was found to have grade 2/5 upper motor neuron-general proprioception ataxia with no cranial nerve deficits. During radiographic and gross necropsy examinations a novel atlanto-axial malformation of possible congenital etiology was found.

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Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/28878414/