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Tomografia computorizada intraoperatória na artrodese lombar

Authors: Corrente, Diogo Emílio da Fonseca Ussemane Pires;

Tomografia computorizada intraoperatória na artrodese lombar

Abstract

O presente relatório desenvolvido com base na prática clínica tem como objetivo demonstrar a importância da utilização da Tomografia Computorizada Intraoperatória (iTC) na realização de artrodese lombar, sendo este um procedimento que consiste na fusão de uma ou mais vértebras lombares de modo a aliviar a dor relacionada com certas patologias. A fusão entre as vértebras ocorre através da utilização de excertos ósseos ou outros materiais, como ligas metálicas, polímeros, compósitos ou cerâmicos. De modo a ajudar no processo de fusão são também utilizados dispositivos de fixação tais como parafusos pediculares, hastes e barras. A possibilidade de reconstruções MPR (Multiplanar Reformation) e VRT (Volume Rendering Technique), assim como a possibilidade de variar as janelas de visualização das imagens de iTC permitem uma melhor descriminação anatómica e, consequentemente, que a utilização da iTC, quando comparada com a do intensificador de imagem móvel, seja mais precisa na avaliação da colocação dos parafusos pediculares, evitando possíveis lesões causadas pela sua má colocação.

This report developed in clinical practice aims to demonstrate the importance of the intraoperative Computed Tomography (iCT) in the lumbar arthrodesis performance. It consists in the fusion of single or multiple lumbar vertebrae in order to relieve the pain related to some specific pathologies. The vertebral fusion is accomplished using bone grafts or other materials such as bone substitutes, metal alloys, polymers, composites or ceramics. In order to assist in the interbody fusion process, fixation devices such as pedicle screws, rods and plates are also used. The possibility of MPR (Multiplanar Reformation) and VRT (Volume Rendering Technique) reconstructions, as well as the ability of changing the windows levels of iCT images, allow a better anatomical discrimination and consequently, when compared with commonly used the mobile C-arm, the iCT appears more accurate in evaluating the placement of pedicle screws, avoiding possible injuries caused by their misplacement.

Mestrado em Materiais e Dispositivos Biomédicos

Country
Portugal
Related Organizations
Keywords

Ortopedia - Cirurgia, Polímeros, Compósitos cerâmicos, Biocompatibilidade, Doenças da coluna vertebral, Ligas metálicas, Ciência dos materiais, Tomografia computorizada - Aplicações em medicina

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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