J Vet Sci.  2010 Mar;11(1):89-91. 10.4142/jvs.2010.11.1.89.

The relationship between the size of caudolateral curvilinear osteophyte of the canine femoral neck and the radiographic view

• Kishimoto
• Pae SH
• Muroya N
• Watarai H
• Anzai H
• Lee KJ
• Shimizu J
• Sasaki M
• Yamada K

• KMID: 1106163
• DOI: http://doi.org/10.4142/jvs.2010.11.1.89

Abstract

Caudolateral curvilinear osteophyte (CCO), an osteophyte at the site of joint capsule attachment on the caudal aspect of the femoral neck, has been advocated as a radiographic criterion for coxofemoral subluxation. The correlation between the presence of CCO on radiographs (radiographic-CCO), the size of the CCO (CCO index) on three-dimensional computed tomographic (CT) images, and hip evaluation using transverse CT images was assessed in 22 Border Collies. CCOs were detected on the radiographs and CT images of 32% and 100% femurs, respectively. The CCO index correlated significantly with radiographic-CCO, but a large CCO index did not necessarily imply that the CCO was visible on radiographs. Hence, radiographic-CCO findings should be used cautiously in hip evaluation of Border Collies.

Keyword

Border Collies; canine; computed tomography; hip joint; morgan's line

MeSH Terms

Animals
Dog Diseases/*physiopathology/radiography
Dogs
Female
Hip Dysplasia, Canine/*physiopathology/radiography
Image Processing, Computer-Assisted
Male
Osteophyte/*physiopathology/radiography
Tomography, X-Ray Computed/veterinary

Figure

• 

  Fig. 1 Three-dimensional CT image of femur No. 37 (A) and No. 20 (B). In the image B, the femoral neck around the joint capsule is thickened (arrow), but there was no 'remarkable projection' compared with A. 1: major axis (11.9 mm), 2: minor axis (5.6 mm).

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