Article

Quantitative evaluation of hip joint laxity in 22 Border Collies using computed tomography.

Department of Clinical Veterinary Science, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, Japan.
Journal of Veterinary Medical Science (impact factor: 0.85). 03/2009; 71(2):247-50. pp.247-50
Source: PubMed

ABSTRACT The purpose of this study was to obtain the computed tomography (CT) data for the hip joints of 22 Border Collies. The dorsolateral subluxation (DLS) score, lateral center edge angle (LCEA), dorsal acetabular rim angle (DARA) and center distance (CD) index were measured on the CT images in a weight-bearing position. Radiographic Norberg angle (NA) was also measured. The mean values were 45.7 +/- 10.2% for DLS score, 85.9 degrees +/- 10.3 degrees for LCEA, 18.5 degrees +/- 7.3 degrees for DARA, 0.40 +/- 0.17 for CD index and 102.7 degrees +/- 6.9 degrees for NA. Since the DLS score and LCEA showed strong correlation, combined use of these parameters might improve diagnostic accuracy. We consider CT evaluation in a weight-bearing position to be a useful method for multidirectional evaluation of hips.

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Keywords

22 Border Collies
 
center distance
 
computed tomography
 
DLS
 
DLS score
 
dorsal acetabular rim angle
 
dorsolateral subluxation
 
lateral center edge angle
 
mean values
 
Radiographic Norberg angle
 
strong correlation
 
useful method
 
weight-bearing position
 

Miori Kishimoto