Introduction -Deformity in adolescent thoracic spine has high prevalence worldwide. A number of theories have been suggested for the cause of AIS. The loading asymmetry on the thorax and spinal structures, generating an asymmetry in bone growth, and changes in the sagittal profile in the spines of children and adolescents may be considered a risk factor for the onset and progression of AIS. Objective - The objective of this work was to study the biomechanical behavior on the thoracic spines of adolescents under asymmetric ligament load in kyphosis and rectified kyphosis. Methods - Two finite element models of an adolescent thoracic segment, T5-T10, were generated with every bone component, intervertebral discs, the flavum, intertransverse and supraspinous ligaments. The 3-dimensional geometry of the T5-T10 was generated with Autodesk®Maya®, and HyperMesh® version 14.0 was used to generate the finite element models. Asymmetric ligament load of 10N was applied in the T8-T9, with and without axial load of 400 N in the T5 vertebra. Results - Rectified kyphosis showed the highest rotational displacement of the T8-T9 unit: 0.16° with axial load and asymmetric ligament load, and 0.22° with asymmetric ligament load alone. Kyphosis exhibited rotational displacement of 0.11° and 0.12°, respectively, for the same load conditions. In the case of absence of kyphosis, a misalignment of the vertebrae’s central axis was observed, due to a displacement in X-axis of the spinous processes of both vertebrae, 0,115mm in T8, and -0,653mm in T9, as well as the approximation of the transverse processes of T8 and T9, characterizing a lateral flexion of the vertebrae to the right. No lateral displacement was observed in the case of kyphosis. Conclusions- Rectified kyphosis subjected to an asymmetric ligament force showed greater inoperability of the facet joints, and therefore greater vulnerability to vertebral rotation. The results suggest the need for greater attention to the vertebral assessments in the sagittal plane, beginning from the growth spurt period, to adopt preventive therapeutic.
Anais do 1º Congresso Brasileiro de Escoliose
O Congresso Brasileiro de Escoliose (CBE) tem por objetivo promover a educação e conscientização sobre a escoliose, disseminar informações de qualidade, oportunizar ações para a comunidade, aprimorar o conhecimento dos envolvidos e viabilizar o contato entre profissionais no nosso país.
O Anais do Congresso Brasileiro de Escoliose é uma publicação de periodicidade anual com o intuito de divulgar os trabalhos aprovados para apresentação em cada edição do Congresso Brasileiro de Escoliose.
Nesta primeira edição, foram apresentados 07 trabalhos subdivididos nas seguintes áreas temáticas:
1) Tecnologia e inovação em Instrumentos de avaliação para escoliose;
2) Tratamento da Escoliose: conservador (fisioterapia e/ou colete) e cirúrgico; e,
3) Qualidade de vida, percepção corporal, funcionalidade e/ou dor e no paciente com escoliose.
Comissão Organizadora
Isis Navarro
Mônica Bicalho
Eveline Jaudy
Luciana Ribeiro Guimarães
Comissão Científica
Isis Navarro
Luciana Ribeiro Guimarães
Corpo editorial
Isis Juliene Rodrigues Leite Navarro
Bruna Nichele da Rosa
Luciana Ribeiro Guimarães
Periodicidade da publicação: Anual
Nome do autor corporativo: Sociedade Brasileira de Escoliose
Logradouro do autor corporativo: Avenida Taquara, 98 – Conjunto 504 – Bairro: Petrópolis – CEP: 90460-210 – Porto Alegre/ RS
Ferramenta completa de submissão, avaliação e publicação de anais para eventos científicos.