PREVALENCE OF COMPUTED TOMOGRAPHIC SUBCHONDRAL BONE LESIONS IN THE SCAPULOHUMERAL JOINT OF 32 IMMATURE DOGS WITH THORACIC LIMB LAMENESS

Osteochondrosis is a common developmental abnormality affecting the subchondral bone of immature, large breed dogs. The purpose of this retrospective study was to describe CT lesions detected in scapulohumeral joints of 32 immature dogs undergoing CT for thoracic limb lameness. Eight dogs (14 scapul...

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Bibliographic Details
Published in:Veterinary radiology & ultrasound 2014-01, Vol.55 (1), p.23-28
Main Authors: Lande, Rachel, Reese, Shona L., Cuddy, Laura C., Berry, Clifford R., Pozzi, Antonio
Format: Article
Language:English
Subjects:
Animals
Arthroscopy - veterinary
dog
Dog Diseases - diagnostic imaging
Dog Diseases - epidemiology
Dogs
Female
Florida - epidemiology
Forelimb - diagnostic imaging
Lameness, Animal - diagnostic imaging
Lameness, Animal - epidemiology
Male
osteochondrosis
Osteochondrosis - diagnostic imaging
Osteochondrosis - veterinary
Prevalence
Retrospective Studies
shoulder
Shoulder Joint - diagnostic imaging
subchondral bone
Tomography, X-Ray Computed - veterinary
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Summary:Osteochondrosis is a common developmental abnormality affecting the subchondral bone of immature, large breed dogs. The purpose of this retrospective study was to describe CT lesions detected in scapulohumeral joints of 32 immature dogs undergoing CT for thoracic limb lameness. Eight dogs (14 scapulohumeral joints) had arthroscopy following imaging. Thirteen dogs (19 scapulohumeral joints) were found to have CT lesions, including 10 dogs (16 scapulohumeral joints) with subchondral bone lesions and 3 dogs with enthesopathy of the supraspinatus tendon. In one dog, subchondral bone lesions appeared as large oval defects within the mid‐aspect of the glenoid cavities, bilaterally. These lesions resembled osseous cyst‐like lesions commonly identified in the horse. This is the first report of such a presentation of a subchondral bone lesion in the glenoid cavity of a dog. In all dogs, small, focal, round or linear lucent defects were visible within the cortical bone at the junction of the greater tubercle and intertubercular groove. These structures were thought to represent vascular channels. Findings from this study support the use of CT as an adjunct modality for the identification and characterization of scapulohumeral subchondral bone lesions in immature dogs with thoracic limb lameness.
ISSN:1058-8183
1740-8261
DOI:10.1111/vru.12089