Clinical-epidemiological study of cases of dorsal patellar fixation in cattle
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Dairy cattle
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da Silva, S. de T. G., Souto, R. J. C., Lima, E. H. F., da Silva, N. A. A., Danta, A. C., Costa, N. de A., Coutinho, L. T., & Afonso, J. A. B. (2014). Clinical-epidemiological study of cases of dorsal patellar fixation in cattle. Brazilian Journal of Veterinary Medicine, 36(1), 45–48. Retrieved from


ABSTRACT. Silva S.T.G., Souto R.J.C., Lima E.H.F., Silva N.A.A., Dantas A.C., Costa N.A., Coutinho L.T. & Afonso J.A.B. [Clinical-epidemiological study of cases of dorsal patellar fixation in cattle.] Estudo clínico-epidemiológico dos casos de fixação dorsal de patela em bovinos. Revista Brasileira de Medicina Veterinária, 36(1):45-48, 2014. Clínica de Bovinos, Universidade Federal Rural de Pernambuco, Campus Garanhuns, Av. Bom Pastor s/n, Caixa Postal 152, Bairro Boa Vista, Garanhuns, PE 55292-270, Brasil. E-mail: Unilateral or bilateral dorsal fixation of the patella is a frequent syndrome in cattle, affecting animals of both sexes and different ages. The aim of the present clinical-epidemiological study was to perform a retrospective analysis of clinical cases of bovine dorsal patellar fixation treated during routine clinical practice. Among a total of 5296 bovine´s examinations, 57 cases of patella fixation were diagnosed, predominantly 95% affecting females (n = 54), with only three cases occurring in males (5%). A greater frequency of cases occurred in animals over three years of age. Regarding the number of births, there was a greater occurrence of cases during the second birth (44%). Semi-intensive cattle-raising systems accounted for 31 cases (60%), extensive systems accounted for 15 cases (29%) and intensive systems accounted for six cases (11%). Forty-one cases (72%) occurred in summer and 16 (28%) occurred in winter. Twenty-eight animals (49%) were affected in the right hind leg, 19 (33%) were affected in the left hind leg and 10 (18%) were affected in both hind legs. The constant occurrence of this condition in clinical practice implies economic losses if satisfactory treatment measures are not taken.

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