Estudo comparativo entre os métodos do índice de Norberg e Ofa Like Score para a avaliação de displasia coxofemoral em gatos

• Ano de defesa: 2009
• Autor(a) principal: Medeiros Junior, Luis Carlos [UNIFESP]
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de São Paulo (UNIFESP)
• Palavras-chave em Português: Coxofemoral; Gatos; Radiologia; Displasia
• Link de acesso: http://repositorio.unifesp.br/handle/11600/9510

Hip dysplasia in cats has been a theme little explored by veterinary medicine, even when a master’s degree thesis published by DDI / EPM / UNIFESP proved that 40% of cats show some degree of hip dysplasia when evaluated by the Norberg angle index. In Brazil, such method is the standard adopted to evaluate hip dysplasia. Another internationally accepted method is the OFA Like Score, performed by the Orthopedic Foundation For Animals, which morphologically evaluates the joint, as well as the femoral head’s percentage of coverage by the acetabulum, in addition to the Norberg angle, being broadly accepted in most countries. Purpose: This research intends to evaluate the occurrence of hip dysplasia in sampling animals by Norberg angle and OFA Like Score methods; to morphologically classify sampling animals according to OFA’s anatomic standard; to establish a correlation, for cats, between values obtained from Norberg angle and OFA Like Score, and to associate them to the morphological classification, establishing classification values for cats according to Norberg angle and OFA Like Score methods. Results: By means of the data obtained, it was possible to establish reference curves of 2.5%, 50.0% and 97.5% between the percentage of coverage and Norberg angle for animals with a normal joint and for dysplastic animals. Conclusion: Hip dysplasia classification for cats shall be reviewed, since both values, of percentage of coverage and Norberg angle mentioned in the literature differ from the ones obtained in this sample.