Capacidade corretiva radiográfica inicial do colete 3D em pacientes com Escoliose Idiopática do Adolescente

Abstract

The research object: To study the brace which is made with digital technology and its use in the treatment of adolescent idiopathic scoliosis (AIS). Objective: To evaluate the ability of the brace, made with digital technology and produced with three-dimensional technological resources and robotic engineering, to correct primary and secondary AIS curves. Methodology: A cross-sectional study was carried out with 156 patients diagnosed with AIS who purchased the 3D brace between 2022 and 2023 in a laboratory that produces orthotics and orthopedic prostheses. These patients underwent independent analysis of radiographic parameters and the most important outcome was the standardized measurement of the primary and secondary curves using the Cobb method. The radiographs which were analyzed were taken in orthostasis before and immediately after adapting the brace to the patient, in a period of 2 to 6 weeks after starting to use the orthosis. The correction capacity was calculated as the ratio between the difference between the pre and post-brace curves and the pre-brace curve. Results: The median correction of the primary curve with the 3D brace was 47.45% and the secondary curve was corrected by 37.07%. The demographic and radiographic variables considered positive predictors with statistical significance (p<0.05) for determining the percentage of correction of the primary curve in the multivariate analysis were: group 1 (<20º) of magnitude (β coefficient = 50.47; p =0.001); convexity to the right (β coefficient = 18.42; p=0.007); Risser 1 (β coefficient = 15.17; p=0.042). The negative predictors of the percentage of correction with statistical significance (p<0.05) were: group 3 (>40º) of magnitude (β coefficient = -21.20; p=0.002); double curve (β coefficient = -32.52; p=0.000); thoracic curve (β coefficient = -17.29; p=0.011). Conclusion: The 3D brace, produced with modern technological resources, was effective in immediately correcting AIS.