Comparison of three radiographic methods for diagnosis of hip dysplasia in eight-month-old dogs
Comparison of three radiographic methods for diagnosis of hip dysplasia in eight-month-old dogs
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DOI：
10.2460/javma.2001.219.1242
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发表时间：
2001-11-01
期刊：
影响因子：
--
通讯作者：
Farese, JP
中科院分区：
文献类型：
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作者：
Lust, G;Todhunter, RJ;Farese, JP
目的：比较延长髋关节X线片(EHR)评分、牵张指数(DO)和背外侧半脱位(DLS)评分对8个月龄犬髋关节发育不良的诊断准确性。设计队列研究动物-129只拉布拉多犬、灰狗和拉布拉多猎犬-灰狗杂交犬。狗在8-36个月龄时被安乐死；髋关节发育不良在尸检时根据髋关节关节软骨大体检查骨关节炎的迹象而被诊断。结果：8个月龄时的EHR评分、DI和DLS评分都与尸检时软骨退变的程度显著相关。8月龄时用EHR评分诊断髋关节发育不良的灵敏度和特异度分别为38%和96%；使用DI的灵敏度和特异度分别为50%和89%；使用DLS评分的灵敏度和特异度分别为83%和84%。结论和临床相关性结果表明，3种方法诊断8个月龄犬髋关节发育不良的特异度相似。然而，DLS评分具有较高的敏感性，表明假阴性结果较少。
Objective-To compare the accuracy of the extended-hip radiographic (EHR) score, the distraction index (DO, and the dorsolateral subluxation (DLS) score for identifying hip dysplasia in dogs at 8 months of age.Design-Cohort studyAnimals-129 Labrador Retrievers, Greyhounds, and Labrador Retriever-Greyhound crossbreds.Procedure-Radiography was performed when dogs were 8 months of age. Dogs were euthanatized at 8 to 36 months of age; hip dysplasia was diagnosed at the time of necropsy on the basis of results of a gross examination of the articular cartilage of the hip joints for signs of osteoarthritis.Results-The EHR score, DI, and DLS score at 8 months of age were all significantly correlated with degree of cartilage degeneration at necropsy. Sensitivity and specificity of using EHR score at 8 months of age to diagnose hip dysplasia (scores > 3 were considered abnormal) were 38 and 96%, respectively; sensitivity and specificity of using DI (values > 0.7 were considered abnormal) were 50 and 89%; and sensitivity and specificity of using DLS score (scores 55% were considered abnormal) were 83 and 84%.Conclusions and Clinical Relevance-Results suggested that specificities of the 3 methods for diagnosing hip dysplasia in dogs at 8 months of age were similar. However, the DLS score had higher sensitivity, indicating that there were fewer false-negative results.