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Vet Comp Orthop Traumatol 2005; 18(02): 77-81
DOI: 10.1055/s-0038-1632935
Clinical Communication
Schattauer GmbH

Computerized tomography compared with radiography in the diagnosis of lateral trochlear ridge talar osteochondritis dissecans in dogs

I. Gielen
1   Department of Medical Imaging, Faculty of Veterinary Medicine, Ghent University, Belgium
,
B. van Ryssen
1   Department of Medical Imaging, Faculty of Veterinary Medicine, Ghent University, Belgium
,
H. van Bree
1   Department of Medical Imaging, Faculty of Veterinary Medicine, Ghent University, Belgium
› Author Affiliations
Further Information

Publication History

Received 14 February 2003

Accepted 16 August 2004

Publication Date:
08 February 2018 (online)

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Summary

In this retrospective study, we compared the value of radiographic and computerized tomographic (CT) imaging for the diagnosis of lateral trochlear ridge talar osteochondritis dissecans (LTRT-OCD) in 11 tarsocrural joints. The flexed dorsoplantar skyline and the plantarolateral-dorsomedial projections were the most reliable for radiographic detection of OCD fragments (in 7 of the 11 joints). Overall, radiography detected OCD fragments in 8 of 11 joints. By contrast, the OCD fragments could be visualized and exactly localized by CT in all 11 joints. Computerized tomography allowed the talar ridges to be inspected without superimposition of any bony structures. This information may be very useful when minimal invasive techniques are used to treat LTRT-OCD lesions. The findings of this study suggest that CT is superior to radiography for making a diagnosis of LTRT-OCD in the dog.

Keywords

Dog - computerized tomography - osteochondritis dissecans - talus
 

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