Radiographic findings in the coxofemoral joint of Australian Cattle Dogs




Norberg angle, Inclination angle of the femoral neck, Cortical index, Blue heeler, Hip dysplasia


Australian Cattle Dogs (ACD) are medium-sized animals widely used in fieldwork for managing cattle and sheep. There needs to be more information about the conditions these dogs can develop despite being well-characterized animals since the beginning of the 20th century. Hip dysplasia (HD) is a developmental abnormality between the femoral head and the acetabular fossa, which can be debilitating. However, the available literature has no studies on the prevalence of this condition in dogs of this breed. This study aimed to evaluate radiographs of ACD qualitatively and quantitatively. For this purpose, 49 dogs considered healthy without clinical signs of HD were radiographically assessed, and the animals were classified as dysplastic (D) and non-dysplastic (ND). A frequency of 46.9% of dysplastic dogs was observed, with males being more affected. The cortical index (CI) and angle of inclination (AI) could not differentiate D from ND animals; only the Norberg angle (NA) was effective in this differentiation. No correlation was observed between AI, CI, and AN.


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Cavalcanti GAO. Radiologia da displasia coxofemoral em cães. In: Oliveira ALA, De Nardi AB, Silva RLM, Roza MR, editors. Dia a dia: tópicos selecionados em especialidades veterinárias. 1ª ed. São Paulo: Medvet; 2018. p. 289-91. (vol. II).

Confederação Brasileira de Cinofilia – CBKC. Padrão oficial da raça Australian Cattle Dog [Internet]. 2012 [cited 2023 Jan 6]. Available from:

Cruz CMO. As raças portuguesas de cães de gado e cão de pastoreio: aspectos morfológicos e comportamentais [dissertation]. Lisboa: Faculdade de Medicina Veterinária, Universidade Técnica de Lisboa; 2007.

Fossum TW. Afecções articulares. In: Fossum TW, Duprey LP, O’Connor D, editors. Cirurgia de pequenos animais. Rio de Janeiro: Elsevier; 2008. p. 1143-315.

Genuíno PC, Miranda FG, Rezende CMF, Tôrres RCS. Parâmetros radiográficos de displasia coxofemoral na raça Rottweiler. Arq Bras Med Vet Zootec. 2015;67(4):1178-82.

Hartung K, Hasselt SC. Morphometrische untersuchungen am femurknochen des undes. Berl Münch Tier Woch. 1988;101(1):15-79.

Hauptman J, Cardinet 3rd G, Morgan JP, Guffy MM, Wallace LJ. Angles of inclination and anteversion in hip dysplasia in the dog. Am J Vet Res. 1985;46(10):2033-6. PMid:4062003.

Henrigson B, Norberg I, Olssons SE. On the etiology and pathogenesis of hip dysplasia: a comparative review. J Small Anim Pract. 1966;7(11):673-88. PMid:5342030.

King D. Etiopathogenesis of canine hip dysplasia, prevalence and genetics. Veterinary clinics of North America. Vet Clin North Am Small Anim Pract. 2017;47(4):753-67.

Loder RT, Todhunter RJ. Demographics of hip dysplasia in the Maine Coon cat. J Feline Med Surg. 2018;20(4):302-7. PMid:28430011.

Lust G, Williams AJ, Burton-Wurster N. Joint laxity and its association with hip dysplasia in Labrador retrievers. Am J Vet Res. 1993;54(12):1990-9. PMid:8116927.

Mikkola L, Kyöstilä K, Donner J, Lappalainen AK, Hytönen MK, Lohi H, Iivanainen A. An across-breed validation study of 46 genetic markers in canine hip dysplasia. BMC Genomics. 2021;22(1):68-74. PMid:33478395.

Mölsä SH, Hyytiäinen HK, Morelius KM, Palmu MK, Pesonen TS, Lappalainen AK. Radiographic findings have an association with weight bearing and locomotion in English bulldogs. Acta Vet Scand. 2020;62(1):19. PMid:32398017.

Paster RE, LaFond E, Biery DN, Iriye A, Gregor TP, Iriye A, Gregor TP, Shofer FS, Smith GK. Estimates of prevalence of hip dysplasua in Golden Retrievers and Rotweillers and the influence of bias on published prevalence figures. J Am Vet Med Assoc. 2005;226(3):387-92. PMid:15702688.

Powers MY, Biery DN, Lawler DF, Evans RH, Shofer FS, Mayhew P, Gregor TP, Kealy RD, Smith GK. Use of the caudolateral curvilinear osteophyte as an early marker for future development of osteoarthritis associated with hip dysplasia in dogs. J Am Vet Med Assoc. 2004;225(2):233-7. PMid:15323379.

Rocha BD, Tôrres RCS, Silva EF, Miranda FG. Avaliação da displasia coxofemoral em cães adultos: comparação entre dois métodos. Arq Bras Med Vet Zootec. 2014;66(6):1-7.

Schwartz T. Australian Cattle Dog. Freehold, NJ: Kennel Club Books; 2004.

Thrall DE. Textbook of veterinary diagnostic radiology. 7th ed. St. Louis: Elsevier; 2018.

Tôrres RCS. Prevalência da displasia coxofemoral em cães da raça Pastor Alemão [dissertation]. Belo Horizonte: Escola de Veterinária, Universidade Federal de Minas Gerais; 1993.

Vieira GLT, Tôrres RCS, Barros GS, Rocha BD, Rezende CMF. Associação entre o ângulo de Norberg, o percentual de cobertura da cabeça femoral, o índice cortical e o ângulo de inclinação em cães com displasia coxofemoral. Arq Bras Med Vet Zootec. 2010;62(5):1094-101.

Weigel JP, Wasserman JF. Biomechanics of the normal and abnormal hip joint. Vet Clin North Am Small Anim Pract. 1992;22(3):513-28. PMid:1604769.




How to Cite

Santos, T. C. dos, Cavalcanti, E. A. N. L. D., Dode, M. E. B., Boff, G. A., Cavalcanti, G. A. de O., & Bruhn, F. R. P. (2023). Radiographic findings in the coxofemoral joint of Australian Cattle Dogs. Brazilian Journal of Veterinary Research and Animal Science, 60, e208324.