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1.
J Small Anim Pract ; 55(10): 538-41, 2014 Oct.
Article in English | MEDLINE | ID: mdl-24962201

ABSTRACT

An adult male crossbred dog was referred with a history of a road traffic accident that took place 1 month earlier. Neurological examination revealed paraplegia with absent nociception in the pelvic limbs. On epaxial palpation, significant curvature of the anatomical axis of the spine between the third and fourth lumbar vertebrae was observed, with the presence of a bone end almost piercing the dog's skin. Survey radiographs of the lumbar spine revealed severe dislocation between L3 and L4 vertebrae. During surgery, the spinal cord was not visible between the dislocated segments. Because of difficulties in reducing the lumbar luxation during surgery, vertebrectomy and vertebral shortening were performed. After alignment between vertebrae L3 and L5, eight cortical orthopaedic screws and bone cement were used for fixation. After 30 days, the dog started to use a wheelchair and was considered by its owner to have a good quality of life with no evidence of pain. To the authors' knowledge, this is the first case of severe luxation treated by total vertebrectomy and spine shortening in a dog. This surgery can be considered as an option in the management of severe spine luxation when the spinal cord is physically transected.


Subject(s)
Dogs/surgery , Lumbar Vertebrae/surgery , Spinal Cord Injuries/veterinary , Animals , Bone Screws/veterinary , Diagnosis, Differential , Dogs/injuries , Male , Nociceptive Pain/veterinary , Paraplegia/etiology , Paraplegia/veterinary , Spinal Cord Injuries/complications , Spinal Cord Injuries/surgery , Spinal Fusion/veterinary
2.
Arq. bras. med. vet. zootec ; 57(4): 442-447, ago. 2005. tab, ilus
Article in Portuguese | VETINDEX | ID: vti-6380

ABSTRACT

Avaliou-se o efeito da reconstrução do ligamento cruzado cranial, associado ou não ao sulfato de condroitina, na evolução da osteoartrite induzida experimentalmente em cães. Vinte cães hígidos, sem raça definida, machos e fêmeas, com peso corpóreo entre 19 e 25kg, foram submetidos à desmotomia do ligamento cruzado cranial. Trinta dias após, foram separados em dois grupos de 10 animais. Um grupo foi submetido à reconstrução do ligamento cruzado com uso de aloenxerto de ligamento patelar congelado, o outro não. Trinta e um dias após a desmotomia, cada grupo foi dividido em dois subgrupos de cinco animais. Um recebeu sulfato de condroitina, o outro não. Os cães foram avaliados clínica e radiograficamente antes da desmotomia e aos 30, 60 e 90 dias após a desmotomia. No último momento foram realizados exames macro e microscópico. Nos cães submetidos somente à desmotomia e tratados com sulfato de condroitina houve redução na progressão das alterações ósseas, ao exame radiográfico. A reconstrução do ligamento cruzado cranial melhorou a função do membro e, quando associada ao sulfato de condroitina, houve melhor resposta. Não houve diferença entre os subgrupos quanto aos exames macro e microscópico.(AU)


The effect of cranial cruciate ligament reconstruction, associated or not to chondroitin sulfate, on the evolution of experimentally induced osteoarthritis in dogs was studied. Twenty healthy mixed dogs, weighing between 19 and 25kg were submitted to cranial cruciate desmotomy. Thirty days later, the animals were divided into two groups with ten dogs each. One was submitted to cranial cruciate ligament reconstruction using frozen patellar tendon allograft and the other received no surgical treatment. Thirty one days after desmotomy, each group was divided into two subgroups with five animals each. One subgroup for each group received chondroitin sulfate and the other received no medical treatment. The dogs were evaluated clinically and radiographically before desmotomy, 30, 60 and 90 days after desmotomy, and at this moment, accomplished gross and microscopical exams. In dogs submitted to only desmotomy, chondroitin sulfate reduced radiographically the progression of osteoarthritic bone changes. Cranial cruciate ligament reconstruction improved dog's gait, however, when associated with chondroitin sulfate, the limb function improved even quicker. There were no statistical differences between subgroups at gross and histological evaluation.(AU)


Subject(s)
Animals , Osteoarthritis, Knee/chemically induced , Transplantation, Homologous , Transplantation, Homologous/veterinary , Dogs
3.
Arq. bras. med. vet. zootec ; Arq. bras. med. vet. zootec. (Online);57(4): 442-447, ago. 2005.
Article in Portuguese | LILACS | ID: lil-415184

ABSTRACT

Avaliou-se o efeito da reconstrução do ligamento cruzado cranial, associado ou não ao sulfato de condroitina, na evolução da osteoartrite induzida experimentalmente em cães. Vinte cães hígidos, sem raça definida, machos e fêmeas, com peso corpóreo entre 19 e 25kg, foram submetidos à desmotomia do ligamento cruzado cranial. Trinta dias após, foram separados em dois grupos de 10 animais. Um grupo foi submetido à reconstrução do ligamento cruzado com uso de aloenxerto de ligamento patelar congelado, o outro não. Trinta e um dias após a desmotomia, cada grupo foi dividido em dois subgrupos de cinco animais. Um recebeu sulfato de condroitina, o outro não. Os cães foram avaliados clínica e radiograficamente antes da desmotomia e aos 30, 60 e 90 dias após a desmotomia. No último momento foram realizados exames macro e microscópico. Nos cães submetidos somente à desmotomia e tratados com sulfato de condroitina houve redução na progressão das alterações ósseas, ao exame radiográfico. A reconstrução do ligamento cruzado cranial melhorou a função do membro e, quando associada ao sulfato de condroitina, houve melhor resposta. Não houve diferença entre os subgrupos quanto aos exames macro e microscópico.


Subject(s)
Animals , Dogs , Osteoarthritis, Knee/chemically induced , Transplantation, Homologous , Transplantation, Homologous/veterinary
4.
Arq. bras. med. vet. zootec ; Arq. bras. med. vet. zootec. (Online);53(5): 563-567, out. 2001. tab
Article in Portuguese | LILACS | ID: lil-307910

ABSTRACT

Avaliaram-se as alteraçöes do líquido sinovial do joelho de 19 cäes submetidos à desmotomia unilateral do cruzado cranial, baseado no modelo experimental de Pond & Nuki, colhido e analisado aos 30 dias de pós-operatório. Cinco animais foram analisados novamente aos 90 dias de pós-operatório. As características analisadas foram volume, cor, aspecto, densidade, pH, proteínas, fibrinogênio, coágulo de mucina, contagem de hemácias e contagem total e diferencial de células nucleadas. O líquido sinovial apresentou padräo inflamatório que persistiu durante todo o período de observaçäo, com efusäo articular. Houve aumento na contagem de células nucleadas e na concentraçäo de fibrinogênio aos 90 dias. A qualidade da precipitaçäo da mucina apresentou melhora aos 90 dias quando comparada à de 30 dias, porém ainda marcadamente anormal. Foi possível concluir que até 90 dias de pós-operatório no modelo utilizado o fluído sinovial apresenta características inflamatórias e näo degenerativas


Subject(s)
Animals , Dogs , Osteoarthritis, Knee , Synovial Fluid
5.
Article in Portuguese | VETINDEX | ID: vti-447751

ABSTRACT

The purpose of this study was to evaluate the changes in knee synovial fluid of 19 dogs with experimentally-induced cranial cruciate ligament rupture, based on Pond & Nuki model. Synovial fluid was achieved and analyzed at 30 days postoperative time. Five animals had further synovial fluid evaluation at 90 days postoperatively. The characteristics observed were color, turbidity, density, pH, protein, fibrinogen, mucin clot, cell count and citology. The synovial fluid exhibited an inflammatory pattern during the postoperative observation time and joint effusion was observed. An increased number of nucleated cells and increased fibrinogen concentration were observed at 90 days when compared to 30 days after desmotomy. Although severely abnormal, an improvement of the mucin clot was observed at 90 days. It can be concluded that synovial fluid in this experimental model, showed inflammatory and no degenerative changes until 90 days postoperative.


Avaliaram-se as alterações do líquido sinovial do joelho de 19 cães submetidos à desmotomia unilateral do cruzado cranial, baseado no modelo experimental de Pond & Nuki, colhido e analisado aos 30 dias de pós-operatório. Cinco animais foram analisados novamente aos 90 dias de pós-operatório. As características analisadas foram volume, cor, aspecto, densidade, pH, proteínas, fibrinogênio, coágulo de mucina, contagem de hemácias e contagem total e diferencial de células nucleadas. O líquido sinovial apresentou padrão inflamatório que persistiu durante todo o período de observação, com efusão articular. Houve aumento na contagem de células nucleadas e na concentração de fibrinogênio aos 90 dias. A qualidade da precipitação da mucina apresentou melhora aos 90 dias quando comparada à de 30 dias, porém ainda marcadamente anormal. Foi possível concluir que até 90 dias de pós-operatório no modelo utilizado o fluído sinovial apresenta características inflamatórias e não degenerativas.

6.
Can Vet J ; 41(11): 849-53, 2000 Nov.
Article in English | MEDLINE | ID: mdl-11126489

ABSTRACT

The purpose of this study was to evaluate the clinical and radiographic outcome in 8 dogs of surgical reduction of congenital humeroulnar luxation by using the transarticular pin. Five cases were bilateral and 3 were unilateral, for a total of 13 elbows. The treatment was performed in animals between 45 and 150 days of age. Articular stabilization was achieved by using a transarticular pin driven from the caudal aspect of the olecranon into the body of the humerus or into the distal condyle and distal metaphysis of the humerus. The follow-up period was between 1 and 19 months. There were 5 postsurgical reluxations, 3 related to the insertion of the pin into the humeral condyle and 2 related to the insertion into the humeral body. These animals needed further surgery. Six animals showed near normal return to limb function and 2 had lameness. We conclude that the use of the transarticular pin is an effective and simple method for the treatment of humeroulnar congenital elbow luxation.


Subject(s)
Bone Nails/veterinary , Dogs/surgery , Forelimb/surgery , Joint Dislocations/veterinary , Joints/surgery , Animals , Dogs/abnormalities , Female , Forelimb/abnormalities , Forelimb/diagnostic imaging , Joint Dislocations/congenital , Joint Dislocations/diagnostic imaging , Joint Dislocations/surgery , Joints/abnormalities , Male , Radiography , Recurrence , Treatment Outcome
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