ABSTRACT
OBJECTIVE: To investigate the correlation between different radiographic methods in the evaluation of the lumbosacral concavity. METHODS: The sample consisted of 52 individuals with ages ranging from 18 to 28 years old. The procedures related to radiographic image collection were carried out in collaboration with a diagnostic imaging center of a hospital in Curitiba, PR, Brazil. The angles of the lumbosacral concavity were evaluated by the following methods: Centroid, Cobb1L1-S1, Cobb2L1-L5, Cobb3L2-S1 Cobb4T12-S1, Posterior Tangent and Trall. RESULTS: High correlation coefficients (r ranging from 0.77 to 0.89) were found among variations of the Cobb method. Additionally, we propose a categorical classification of angle values obtained by each method. We also analyzed the influence of the level of the inflection point between the lumbar lordosis and thoracic kyphosis in determining the evaluation method to be used. The inflection point had a higher incidence in the region between the twelfth thoracic vertebra and the first lumbar vertebra (63.5%). CONCLUSION: The correlation and agreement between methods vary considerably. Moreover, the thoracolumbar inflection point should be considered when choosing the method of assessing patients. Level of Evidence I, Diagnostic Study.
Subject(s)
Humans , Male , Female , Adult , Spine/abnormalities , Damage Assessment , Radiography/methods , Lumbosacral RegionABSTRACT
Diversas técnicas foram, e estão sendo, desenvolvidas para a identificação e adequação de possíveis problemas no sistema esquelético dos indivíduos. Esta revisão tem por finalidade descrever os principais métodos de diagnóstico postural da coluna lombar. Diversos descritores relacionados ao tema foram utilizados nas bases de dados ISI Web of knowledgeSM, SCOPUS, SciELO e Pubmed. Os resultados apresentam as vantagens de limitações dos métodos: Radiografia, Técnica de avaliação postural por imagem ou fotometria, Técnica quadro de referência postural (PRF), Goniometria, Plataforma de Força, Ultrassonografia, Spinal Mouse, Ressonância magnética, Cinemática e Eletromiografia (EMG). Pode-se verificar que as técnicas de maior facilidade são a Fotometria, a Técnica quadro de referência postural (PRF), Plataforma de força e Goniometria. Por outro lado, apesar de serem pouco aplicáveis, a(s) técnica(s): Radiografia, Spinal Mouse, Ressonância magnética, Cinemática, Eletromiografia (EMG) e o Ultrassom são as que apresentam maior precisão na medida da curvatura lombar.
Several techniques have been and are being developed for the identification and adequacy of potential problems in the skeletal system of individuals. This review aims at describing the main methods for posture diagnosis of the lumbar spine. Several descriptors related to the topic were used in databases ISI Web of KnowledgeSM, SCOPUS, SciELO, and Pubmed. We presented the benefits of limitations of methods: Radiography, Postural Assessment Technique by imaging or photometry, Postural Reference Frame Technique (PRF), Goniometry, Power Platform, ultrasound, Spinal Mouse, Magnetic Resonance Imaging, Kinematics, Electromyography (EMG). The easiest techniques were: photometry, postural reference frame technique (PRF), Power Platform and Goniometry. On the other hand, though rarely applied, Radiography, Spinal Mouse, Magnetic Resonance Imaging, Kinematics, Electromyography (EMG) and ultrasound were those with greater accuracy in measuring lumbar curvature.