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Comparação da evolução e tempo de recuperação entre hemilaminectomia e minihemilaminectomiano tratamento de hérnias discais torácicas e/ou lombares no cão
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Advisor(s)
Abstract(s)
Estão descritas várias técnicas cirúrgicas para o tratamento de hérnias discais, sendo as mais
utilizadas a hemilaminectomia (HL) e a mini-hemilaminectomia (MHL). No entanto, não foi identificada
descrição sobre comparações da evolução e tempo de recuperação entre as duas.
Este estudo retrospectivo teve como intuito determinar se a MHL origina melhores resultados do que
a HL em relação à evolução e tempo de recuperação em cães com hérnias discais toraco-lombares.
Foram analisados 11 cães submetidos a HL (n=6) e MHL (n=5) no Hospital Veterinário do Porto e
comparados segundo a idade, peso, género, localização da hérnia discal, grau de disfunção da
medula espinhal prévio à cirurgia (GPC), grau após a cirurgia em escala modificada (GACM), tempo
decorrido desde o aparecimento dos sinais clínicos até à cirurgia (TPC) e tempo decorrido até à
recuperação (TR).
Estatisticamente não se confirmou que a MHL traduz melhores resultados do que a HL. Quando
comparados os resultados das cirurgias MHL e HL nos cães com grau três prévio à cirurgia, verificouse
que a MHL tem melhores resultados quanto ao GACM (p=0,036) e na HL verificou-se que quanto
menor o TPC menor o TR e o GACM (!=0,500 e !=0,707 respectivamente) não sendo, no entanto,
significativo.
Dadas as limitações do estudo, não foi possível concluir que a MHL promove uma maior evolução ou
recuperação em comparação com a HL. Contudo, apesar da necessária validação com estudos
adicionais, verificou-se que a MHL poderá ser a melhor escolha para cães mais pesados quando
comparada com a HL.
Several surgical techniques are described for intervertebral disc herniation’s treatment, being the most commonly used hemilaminectomy (HL) and mini-hemilaminectomy (MHL). However, it hasn’t been identified a description about comparisons of progress and recovery period between those two. This retrospective study had the purpose to establish if MHL promotes better outcomes than HL, regarding the progress and recovery period of dogs with thoraco-lumbar herniated disc. Eleven dogs submitted to HL (n=6) and MHL (n=5) in Hospital Veterinário do Porto were analyzed and compared in terms of age, weight, gender, herniated disc location, degree of dysfunctional spinal cord previous to surgery (GPC), scale modified degree after surgery (GACM), period of time since the onset of clinical signs until the surgery (TPC) and period of time until recovery (TR). It wasn’t statistically confirmed that MHL promotes better results than HL. When comparing the results of HL and MHL surgeries considering dogs with GPC equal to three, it was stood out that MHL has better results in terms of GACM (p=0,036). Furthermore, it was observed that, in the HL, the smaller the TPC the smaller the TR and GACM (!=0,500 e !=0,707 respectively). These values are, nevertheless, not significant. Given the limitations of the study, it was not possible to establish that MHL promotes a bigger progress or recovery in comparison to HL. However, even though there’s a need for validation with further studies, it was stood out that MHL could be the better choice for heavier dogs in comparison to HL.
Several surgical techniques are described for intervertebral disc herniation’s treatment, being the most commonly used hemilaminectomy (HL) and mini-hemilaminectomy (MHL). However, it hasn’t been identified a description about comparisons of progress and recovery period between those two. This retrospective study had the purpose to establish if MHL promotes better outcomes than HL, regarding the progress and recovery period of dogs with thoraco-lumbar herniated disc. Eleven dogs submitted to HL (n=6) and MHL (n=5) in Hospital Veterinário do Porto were analyzed and compared in terms of age, weight, gender, herniated disc location, degree of dysfunctional spinal cord previous to surgery (GPC), scale modified degree after surgery (GACM), period of time since the onset of clinical signs until the surgery (TPC) and period of time until recovery (TR). It wasn’t statistically confirmed that MHL promotes better results than HL. When comparing the results of HL and MHL surgeries considering dogs with GPC equal to three, it was stood out that MHL has better results in terms of GACM (p=0,036). Furthermore, it was observed that, in the HL, the smaller the TPC the smaller the TR and GACM (!=0,500 e !=0,707 respectively). These values are, nevertheless, not significant. Given the limitations of the study, it was not possible to establish that MHL promotes a bigger progress or recovery in comparison to HL. However, even though there’s a need for validation with further studies, it was stood out that MHL could be the better choice for heavier dogs in comparison to HL.
Description
Keywords
Hérnia discal Hemilaminectomia Mini-hemilaminectomia Recuperação Cão Intervertebral disc herniation Hemilaminectomy Mini-hemilaminectomy Recovery Dog