Imobilização de fraturas femorais em gatos usando pino intramedular conectado ou não ao fixador esquelético externo

Rahal, Sheila Canevese; Garib, Maria Isabel; Matsubara, Fabiana Mitie; Vulcano, Luiz Carlos; Louzada, Mário Jefferson Quirino

doi:10.1590/s0103-84782004000600027

Cited by 3 publications

(6 citation statements)

References 8 publications

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“…A utilização de FEE e PIM, chamada de tie-in, associados vem sendo utilizados em fraturas instáveis de fêmur e ulna em cães (Rahal et al, 2004). Essa técnica apresenta como vantagem resistir a todas as forças aplicadas no foco da fratura.…”

Section: Discussionunclassified

Fratura óssea diafisária da tíbia direita de um Oryctolagus cuniculus: Relato de caso

Quadros¹,

Almeida²,

Duarte³

et al. 2022

Pubvet

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Com o aumento do número de pets exóticos, os coelhos têm sido preferidos, por serem silenciosos, higiênicos e dóceis. Com o crescimento de lagomorfos como animais de companhia, ocorrem aumento do número de atendimentos a esses animais em clínicas veterinárias. Apesar do temperamento tranquilo, são muito susceptíveis ao estresse, assim, se assustam facilmente, o que favorece o risco de acidentes traumáticos. Neste contexto, objetivou-se relatar um caso de um coelho que sofreu fratura em membro pélvico, optando-se por procedimento cirúrgico ortopédico, para correção da fratura, com auxílio de pino intramedular e tala rígida. A técnica aplicada foi eficiente quanto ao realinhamento da linha de fratura.

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Section: Discussionunclassified

Fratura óssea diafisária da tíbia direita de um Oryctolagus cuniculus: Relato de caso

Quadros¹,

Almeida²,

Duarte³

et al. 2022

Pubvet

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“…The external skeletal fixator intramedullary pin "tie-in" features biomechanical superiority to both intramedullary and external skeletal fixator pin, since it resists to rotational, bending and axial forces that act at the fracture [2,7]. Additionally, it is a less expensive fracture fixation method, especially when replacing the lateral connecting rod by polymethylmethacrylate acrylic resin [5], as used in this case.…”

Section: Discussionmentioning

confidence: 99%

“…Among the fracture fixation methods, stands out the external skeletal fixator intramedullary pin "tiein", which consists of the association of intramedullary pin to an unilateral external skeletal fixator, due to its many advantages over such fixation methods when used alone [1,5,7].…”

Section: Introductionmentioning

confidence: 99%

External Skeletal Fixator Intramedullary Pin “Tie-in” for the Repair of Comminuted Tibial Fracture in a Brazilian Fox (Pseudalopex vetulus)

Barranco

Barssalho

Almeida

et al. 2016

Acta Scientiae. Vet.

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Background: The Brazilian fox (Pseudalopex vetulus, Lund 1842) is a naturally endemic specie of the Brazilian savana vegetation. Due to the rapid destruction of its habitat, the specie is considered “vulnerable” and subject to different kinds of trauma that usually results in fractures and dislocations. Among the methods of fractures fxation, highlights the external skeletal fxator intramedullary pin “tie-in” which consists of the intramedullary pin associated to the external fxator. The aim of the present report was to describe the case of a Brazilian fox with a comminuted tibial fracture, submitted to osteosynthesis using an external skeletal fxator intramedullary pin “tie-in”. Case: It was attended an exemplar of Pseudalopex vetulus, male, young adult, with 3.9 kg body weight and history of functional impotence of the left hindlimb. At the physical and orthopedic evaluations were observed loss of bone continuity and crepitus in tibial region, and the presence of a contaminated lacerating skin wound about 3 cm in diameter in the lateral side of the injured limb. Craniocaudal and mediolateral radiographic projections of the left hindlimb revealed the presence of a complete comminuted fracture at the proximal and distal shaft of the left tibia; and a complete transverse fracture at mid shaft of the left fbula. Due to this, the animal was submitted to fracture fxation using an external skeletal fxator intramedullary pin “tie-in”. For the surgical procedure, broad trichotomy and antisepsis of the left hindlimb were performed, followed by a longitudinal incision on the medial side of the tibia. After bone fragments identifcation, was realized the retrograde positioning of a Steinmann pin of 3.0 mm in diameter toward the proximal epiphysis. Subsequently, the pin was externalized in the parapatelar region and then replaced toward the distal epiphysis. The intramedullary pin was not cut, but folded and attached to the transcortical pins of the unilateral external skeletal fxator using polymethylmethacrylate acrylic resin. For the unilateral external skeletal fxator were placed four Kirschner pin of 1.5 mm in diameter. Of these, two pins were placed at the proximal bone segment of the fracture, and two at the distal one. The central bone segment was not transfxed by pins. Radiographic postoperative examination revealed fracture reduction with good alignment of the bone fragments. The metallic implants were also well positioned. Bone healing was verifed at 150 days postoperatively. At this moment, radiographic examination revealed calcifed and ossifed bone callus, and the maintenance of bone axis.The animal was reintroduced to nature. Discussion: The external skeletal fxator intramedullary pin “tie-in” features biomechanical superiority to both intramedullary and external skeletal fxator pin, since it resists to rotational, bending and axial forces that act at the fracture. Additionally, it is a less expensive fracture fxation method, especially when replacing the lateral connecting rod by polymethylmethacrylate acrylic resin. It was concluded that the external skeletal fxator intramedullary pin “tie-in”can be considered viable in small wild mammals, such as the Brazilian fox (Pseudalopex vetulus), since it enabled the bone healing and the limb functionality. Further studies with a greater number of individuals, however, are necessary to evaluate the real applicability of the fracture fxation method.Keywords: traumatology, osteosynthesis, wild animals.

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“…A força e a rigidez da montagem podem ser influenciadas pela configuração e pelo número de pinos de transfixação. Entre as estratégias para combater as forças axiais e de envergamento no local da fratura, e ao mesmo tempo minimizar o número de pinos de transfixação, está o uso de uma barra externa adicional (Rahal et al, 2004).…”

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“…Segundo Rahal et al (2004), o padrão de consolidação óssea depende da fratura e da rigidez do fixador. Normalmente uma fratura tratada com um fixador relativamente flexível permite algum movimento interfragmentário com maior proliferação de calo periosteal.…”

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Utilização de fixação externa em fratura de úmero em caprino

Vechiato

Siqueira

Coutinho

et al. 2009

Arq. Bras. Med. Vet. Zootec.

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Imobilização de fraturas femorais em gatos usando pino intramedular conectado ou não ao fixador esquelético externo

Cited by 3 publications

References 8 publications

Fratura óssea diafisária da tíbia direita de um Oryctolagus cuniculus: Relato de caso

Fratura óssea diafisária da tíbia direita de um Oryctolagus cuniculus: Relato de caso

External Skeletal Fixator Intramedullary Pin “Tie-in” for the Repair of Comminuted Tibial Fracture in a Brazilian Fox (Pseudalopex vetulus)

Utilização de fixação externa em fratura de úmero em caprino

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