Al Aiyan Ahmad, Richardson Ken, Manchi George, Ginja Mário, Brunnberg Leo
Department of Veterinary Medicine, College of Food and Agriculture, United Arab Emirates University, Al Ain, United Arab Emirates.
College of Veterinary Medicine, School of Veterinary and Life Sciences, Murdoch University, Perth, WA, Australia.
Front Vet Sci. 2021 Mar 5;8:540406. doi: 10.3389/fvets.2021.540406. eCollection 2021.
To promote the development of an optimally functional total hip prosthesis for medium and large dog breeds, accurate measurements of the normal anatomy of the proximal femur and acetabular retroversion are essential. The aim of the current study was to obtain precise normal values of the femoral anteversion angle using computed tomography on cadavers of mature dogs with normal hip joints of both medium and large breeds. Based on the length of their femora 58 dogs were allocated either to group I: ≤195 mm or group II: >195 mm. In the study the femoral anteversion angle (FAA) was measured on each femur using multi-slice spiral computed tomography (CT). The data were processed as multi-planar and three-dimensional reconstructions using Advantage Workstation software. The CT measurements showed that the mean ± standard deviation (SD) FAA of group I was 31.34 ± 5.47° and in group II it was 31.02 ± 4.95°. There were no significant mean difference associations between the length of the femur and the femoral neck angle in either group ( > 0.05). The data suggest that a prosthesis FAA of 31 degrees would be suitable for a wide range of dog sizes.
为促进适用于中型和大型犬种的具有最佳功能的全髋关节假体的开发，准确测量股骨近端的正常解剖结构和髋臼后倾至关重要。本研究的目的是通过计算机断层扫描，获取中型和大型犬种髋关节正常的成年犬尸体股骨前倾角度的精确正常值。根据股骨长度，58只犬被分为I组：≤195mm或II组：>195mm。在研究中，使用多层螺旋计算机断层扫描（CT）测量每只股骨的股骨前倾角度（FAA）。使用Advantage Workstation软件将数据处理为多平面和三维重建。CT测量显示，I组的平均±标准差（SD）FAA为31.34±5.47°，II组为31.02±4.95°。两组中股骨长度与股骨颈角度之间均无显著的平均差异关联（>0.05）。数据表明，31度的假体FAA适用于广泛的犬只体型。
