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首页> 外文期刊>Coluna/Columna >ANáLISE NUMéRICA DE INSTRUMENTA??O CURTA E LONGA NO TRATAMENTO DAS FRATURAS TORACOLOMBARAES CONSIDERANDO POR??O LIGAMENTARANáLISIS NUMéRICA DE INSTRUMENTACIóN CORTA Y LARGA EN EL TRATAMIENTO DE LAS FRACTURAS TORACOLUMBARES CONSIDERANDO LA PORCIóN LIGAMENT
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ANáLISE NUMéRICA DE INSTRUMENTA??O CURTA E LONGA NO TRATAMENTO DAS FRATURAS TORACOLOMBARAES CONSIDERANDO POR??O LIGAMENTARANáLISIS NUMéRICA DE INSTRUMENTACIóN CORTA Y LARGA EN EL TRATAMIENTO DE LAS FRACTURAS TORACOLUMBARES CONSIDERANDO LA PORCIóN LIGAMENT

机译：胸腰椎骨折治疗中长，短器械的数值分析，考虑到甲RAC骨折的短，长器械的韧度数值分析

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Objective: This study aims to numerically evaluate the surgical treatment of thoracolumbar fractures, comparing the strengths between the long and short fixations using the pedicle of the fractured vertebra, taking into account the supraspinous, intertransverse, and anterior longitudinal ligaments. Methods: A numerical analysis of the techniques of long and short fixation of a thoracolumbar spine fracture was performed using computed tomography images that were converted into three-dimensional models and analyzed through the ANSYS program. The two types of treatments were analyzed considering the tensions generated in the immediate postoperative period, when the fracture has not yet been consolidated. The anterior, posterior, supraspinal and intertransverse longitudinal ligaments were added, in addition to considering different vertebral geometries. Results: Taking into account that the maximum tensile stress of the material used in the metal implant, in the case of titanium, was 960 MPa, the highest tension found in the analysis of the short instrumentation was 346.83 MPa, reaching only 36.13% of the load the material supports, being, therefore, within a safety limit. The analysis performed in the spine with long instrumentation showed the highest tension value of 229.22 MPa. Conclusions: Considering the values found and the resistance of the synthesis material used, the short and long fixation can be considered in the treatment of thoracolumbar fractures with similarity and a good safety coefficient. Level of Evidence III; Case-Control.
机译：目的：本研究旨在从数值上评估胸腰椎骨折的手术治疗，并考虑到棘突上，横突间和前纵韧带，比较骨折椎弓根的长，短固定强度。方法：使用计算机断层扫描图像对胸腰椎骨折的长期和短期固定技术进行数值分析，然后将其转换为三维模型并通过ANSYS程序进行分析。分析了两种治疗方法，考虑到术后尚未愈合的紧绷状态，即在术后即刻产生的张力。除了考虑不同的椎体几何形状外，还增加了前，后，棘上和横突间纵向韧带。结果：考虑到用于金属植入物的材料的最大拉应力（对于钛而言）为960 MPa，因此在短仪器分析中发现的最大拉应力为346.83 MPa，仅达到材料的36.13％。因此，将材料支撑物加载到安全极限内。在长时间使用仪器的脊柱中进行的分析显示最高张力值为229.22 MPa。结论：考虑到所发现的数值和所用合成材料的抵抗力，可以考虑短期和长期内固定治疗胸腰椎骨折的相似性和良好的安全系数。证据等级III;病例对照。

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