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Am J Vet Res ; 64(12): 1472-8, 2003 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-14672422

RESUMO

OBJECTIVE: To determine the radiographic methods that best predict the development of osteoarthritis in the hip joints of a cohort of dogs with hip dysplasia and unaffected dogs. ANIMALS: 205 Labrador Retrievers, Greyhounds, and Labrador Retriever-Greyhound crossbred dogs. PROCEDURE: Pelvic radiography was performed when the dogs were 8 months old. Ventrodorsal extended-hip, distraction, and dorsolateral subluxation (DLS) radiographs were obtained. An Orthopedic Foundation for Animals-like hip score, distraction index, dorsolateral subluxation score, and Norberg angle were derived from examination of radiographs. Osteoarthritis was diagnosed at the time of necropsy in dogs > or = 8 months of age on the basis of detection of articular cartilage lesions. Multiple logistic regression was used to determine the radiographic technique or techniques that best predicted development of osteoarthritis. RESULTS: A combination of 2 radiographic methods was better than any single method in predicting a cartilage lesion or a normal joint, but adding a third radiographic method did not improve that prediction. A combination of the DLS score and Norberg angle best predicted osteoarthritis of the hip joint or an unaffected hip joint. All models that excluded the DLS score were inferior to those that included it. CONCLUSIONS AND CLINICAL RELEVANCE: A combination of the DLS score and Norberg angle was the best predictor of radiographic measures in 8-month-old dogs to determine whether a dog would have normal or osteoarthritic hip joints.


Assuntos
Doenças das Cartilagens/veterinária , Displasia Pélvica Canina/diagnóstico por imagem , Osteoartrite/veterinária , Animais , Doenças das Cartilagens/diagnóstico por imagem , Cães , Modelos Teóricos , Osteoartrite/diagnóstico por imagem , Valor Preditivo dos Testes , Radiografia
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