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Bilateral gastrocnemius muscle rupture in a bovine

Mori, Ana Paula; Schwertz, Claiton Ismael; Henker, Luan Cleber; Stedille, Fernanda Agustini; Christ, Ricardo; Lorenzett, Marina Paula; Broll, Fabrisio; Mendes, Ricardo Evandro.
Acta sci. vet. (Online); 45(suppl.1): 01-05, 2017. ilus
Artigo em Inglês | VETINDEX | ID: vti-688190


Background: Locomotor system diseases are quite common in the field practice in dairy cattle and represent an important cause of economics losses. The rupture of the gastrocnemius muscle has been reported in humans, cattle, horses, camels and llamas. It can be complete or partial. The rupture of muscle as well as sacral fractures are infrequent, and consequently not commonly reported in veterinary medicine. The aim of this work was to report a case of bilateral gastrocnemius rupture in a dairy cow related to a sacral (S2) fracture. Case: A 3-year-old Holstein cow with lameness and urinary incontinence was presented for clinical examination. After three days, clinical signs progressed to sternal recumbency and difficulty to keep normal posture. While standing, the cows tarsal joint showed a 90º degree angle with tibia, in a manner that the metatarsal bones were completely leant on the ground. Also, a marked enlargement in both gastrocnemius area were observed. The animal was in good body condition and alert, although unable to maintain both hind limbs extended straight, and was not able to raise the tarsal joint off the ground. Physiological parameters presented normal values. Due to the poor prognosis, euthanasia and necropsy were conducted. At necropsy, it was observed that in both hind limbs the gastrocnemius muscle was ruptured, presenting severe diffuse dark red color, [...](AU)
Biblioteca responsável: BR68.1