Morphometric assessment of the canine hip joint using the acetabular angle of retrotorsion

B. Doskarova; M. Kyllar; V. Paral

doi:10.3415/VCOT-09-08-0086

Veterinary and Comparative Orthopaedics and Traumatology, Table of Contents

Vet Comp Orthop Traumatol 2010; 23(05): 326-331
DOI: 10.3415/VCOT-09-08-0086

Original Research

Schattauer GmbH

Morphometric assessment of the canine hip joint using the acetabular angle of retrotorsion

B. Doskarova

¹Institute of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences Brno, Czech Republic

³Small Animal Clinic Doskar, Prague, Czech Republic

,

M. Kyllar

¹Institute of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences Brno, Czech Republic

²Companion Care Surgery Broadstairs, Broadstairs, United Kingdom

,

V. Paral

¹Institute of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences Brno, Czech Republic

› Author Affiliations

Abstract

Summary

Morphometric assessment of the canine hip joint using acetabular angle of retrotorsion was used in this study. The aim of our study was to compare the acetabular angle of retrotorsion (AAR) with values of the Norberg angle (NA) and the hip score (HS) in the Leon-berger dog breed and to determine the cut-off point of AAR that distinguish between normal and dysplastic hip status on the basis of Fédération Cynologique Internationale (FCI) hip evaluation. Retrospective analysis of NA and AAR was measured from standard ventrodorsal pelvic radiographs with extended femurs in 387 Leonberger dogs (141 males and 246 females) from 18 to 63 months of age, which were then divided into five age-groups. Through analysis of these radiographs, it was determined that the cut-off point for NA was 105°, AAR was 15°, and the acetabular angle of retrotorsion was positively correlated with Norberg angle and negatively correlated with hip score. The results of our study indicate that the acetabular angle of retrotorsion may represent a reliable morphometric assessment tool in evaluating acetabular cup conformation, and values of AAR may help to assess the FCI grade of canine hip dysplasia.

Keywords

Canine hip dysplasia - Norberg angle - hip joint - Leonberger dog - acetabular angle of retrotorsion

Full Text

References

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