Utilização de fixador externo tipo I para correção de fratura de olécrano em caprino: Relato de caso

Abstract

Long bone fractures are common in small ruminants, and has been described some methods of osteosynthesis. The external fixator is considered a good option because it is non-invasive method and does not cause significant damage to adjacent tissue and vascularization. A goat, female, three months old, it was referred to the Veterinary Hospital with functional impotence of the thoracic left limb. It was diagnosed incomplete and transverse fracture of the third portion of the ulna, associated a lateroproximal luxation between radio and ulna. After a conservative treatment, the animal was forwarded to surgery procedure. The fracture was reduced manually and osteosynthesis was performed with external fixator type I using seven transcortical pins in lateral direction, that were fixed with methacrylate molded in plastic tube. Fifteen days after surgery was observed flexural deformity of the affected limb. This was fixed with placement splint for 15 days. After radiographic control and bone regeneration, the external fixator was removed after 45 days from surgery. The animal was discharge 51 days after removal the implant with a good weight bearing

Tibial osteosynthesis with type II external skeletal fixator in a goat

“…No entanto, este tipo de osteossíntese não atinge estabilidade absoluta no foco de fratura quando comparado a outros métodos (Paretsis et al, 2016). O ideal para este tipo de fratura transversa seria um implante que oferecesse estabilidade absoluta como a placa de compressão dinâmica (Piermattei et al, 2009), porém, o seu custo-benefício inviabiliza a sua utilização para animais de produção.…”

“…Após 68 dias do procedimento cirúrgico, na imagem radiográfica do membro, foi possível visualizar não-união do foco da fratura e áreas de lise óssea em volta dos pinos, devido a osteomielite. Paretsis et al (2016) em seu relato com uso de FEE tipo I em um caprino, observaram áreas de discreta lise óssea em torno dos pinos com 20 dias pós-cirúrgico, mas só retiraram os implantes com 45 dias, obtendo consolidação da fratura. Já Zielinski et al (2017) observaram consolidação completa da fratura do caprino relatado após 60 dias de pós-operatório.…”

External skeletal fixation in large animals: A review

“…There have been reports of favorable cases of the use of ESF in small ruminants, as the behavior, size, and weight of these animals make them good candidates for these surgical treatment methods (Figure 5), even in cases of fractures of proximal bones, such as the humerus and ulna (Kaneps 1996;Paretsis et al 2016;Vechiato et al 2009). However, the application of ESF in fractures of proximal bones, especially the humerus, is usually limited to the type I configuration or the combination of type I fractures in the proximal region and type II fractures in the distal region has been used in small animals (Simpson 2004).…”