Doskarova B, Kyllar M, Paral V
Institute of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences Brno, Palackeho 1-3, CZ - 612 42 Brno, Czech Republic.
Vet Comp Orthop Traumatol. 2010;23(5):326-31. doi: 10.3415/VCOT-09-08-0086. Epub 2010 Aug 25.
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 Leonberger 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.
本研究采用髋臼扭转角对犬髋关节进行形态计量学评估。我们研究的目的是比较纽芬兰犬种的髋臼扭转角（AAR）与诺伯格角（NA）值及髋关节评分（HS），并根据国际犬业联合会（FCI）的髋关节评估确定区分正常和发育异常髋关节状态的AAR临界值。对387只年龄在18至63个月的纽芬兰犬（141只雄性和246只雌性）的标准腹背位骨盆X线片进行回顾性分析，测量其股骨伸展时的NA和AAR，然后将这些犬分为五个年龄组。通过对这些X线片的分析，确定NA的临界值为105°，AAR为15°，髋臼扭转角与诺伯格角呈正相关，与髋关节评分呈负相关。我们的研究结果表明，髋臼扭转角可能是评估髋臼杯形态的可靠形态计量学评估工具，AAR值可能有助于评估犬髋关节发育不良的FCI分级。
