Franco-Gonçalo Pedro, Pereira Ana Inês, Loureiro Cátia, Alves-Pimenta Sofia, Filipe Vítor, Gonçalves Lio, Colaço Bruno, Leite Pedro, McEvoy Fintan, Ginja Mário
Department of Veterinary Science, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal.
Animal and Veterinary Research Centre (CECAV), University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal.
Vet Sci. 2023 May 24;10(6):371. doi: 10.3390/vetsci10060371.
The alteration in the shape of the femoral neck is an important radiographic sign for scoring canine hip dysplasia (CHD). Previous studies have reported that the femoral neck thickness (FNT) is greater in dogs with hip joint dysplasia, becoming progressively thicker with disease severity. The main objective of this work was to describe a femoral neck thickness index (FNTi) to quantify FNT and to study its association with the degree of CHD using the (FCI) scheme. A total of 53 dogs (106 hips) were randomly selected for this study. Two examiners performed FNTi estimation to study intra- and inter-examiner reliability and agreement. The paired -test, the Bland-Altman plots, and the intraclass correlation coefficient showed excellent agreement and reliability between the measurements of the two examiners and the examiners' sessions. All joints were scored in five categories by an experienced examiner according to FCI criteria. The results from examiner 1 were compared between FCI categories. Hips that were assigned an FCI grade of A (n = 19), B (n = 23), C (n = 24), D (n = 24), and E (n = 16) had a mean ± standard deviation FNTi of 0.809 ± 0.024, 0.835 ± 0.044, 0.868 ± 0.022, 0.903 ± 0.033, and 0.923 ± 0.068, respectively (ANOVA, < 0.05). Therefore, these results show that FNTi is a parameter capable of evaluating proximal femur bone modeling and that it has the potential to enrich conventional CHD scoring criteria if incorporated into a computer-aided diagnosis capable of detecting CHD.
股骨颈形状的改变是评估犬髋关节发育不良（CHD）的一项重要影像学指标。以往研究报道，髋关节发育不良的犬股骨颈厚度（FNT）更大，且随着疾病严重程度的增加而逐渐增厚。本研究的主要目的是描述一种股骨颈厚度指数（FNTi）以量化FNT，并使用（FCI）方案研究其与CHD程度的相关性。本研究共随机选取了53只犬（106个髋关节）。两名检查者进行FNTi评估，以研究检查者内部和检查者之间的可靠性及一致性。配对检验、Bland-Altman图和组内相关系数显示，两名检查者的测量结果以及检查者不同检查时段之间具有良好的一致性和可靠性。一名经验丰富的检查者根据FCI标准将所有关节分为五类。比较了检查者1在FCI不同类别间的结果。FCI分级为A（n = 19）、B（n = 23）、C（n = 24）、D（n = 24）和E（n = 16）的髋关节，其平均±标准差FNTi分别为0.809±0.024、0.835±0.044、0.868±0.022、0.903±0.033和0.923±0.068（方差分析，<0.05）。因此，这些结果表明FNTi是一个能够评估股骨近端骨塑形的参数，如果将其纳入能够检测CHD的计算机辅助诊断中，它有可能丰富传统的CHD评分标准。
