Three-dimensional vertebral wedging in mild and moderate adolescent idiopathic scoliosis.

<h4>Background</h4>Vertebral wedging is associated with spinal deformity progression in adolescent idiopathic scoliosis. Reporting frontal and sagittal wedging separately could be misleading since these are projected values of a single three-dimensional deformation of the vertebral body....

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Autores principales:	Sophie-Anne Scherrer, Mickaël Begon, Alberto Leardini, Christine Coillard, Charles-Hilaire Rivard, Paul Allard
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/32ce553ef63547bd8989f3379f02d76f
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spelling	oai:doaj.org-article:32ce553ef63547bd8989f3379f02d76f2021-11-18T08:59:25ZThree-dimensional vertebral wedging in mild and moderate adolescent idiopathic scoliosis.1932-620310.1371/journal.pone.0071504https://doaj.org/article/32ce553ef63547bd8989f3379f02d76f2013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23977058/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>Vertebral wedging is associated with spinal deformity progression in adolescent idiopathic scoliosis. Reporting frontal and sagittal wedging separately could be misleading since these are projected values of a single three-dimensional deformation of the vertebral body. The objectives of this study were to determine if three-dimensional vertebral body wedging is present in mild scoliosis and if there are a preferential vertebral level, position and plane of deformation with increasing scoliotic severity.<h4>Methodology</h4>Twenty-seven adolescent idiopathic scoliotic girls with mild to moderate Cobb angles (10° to 50°) participated in this study. All subjects had at least one set of bi-planar radiographs taken with the EOS® X-ray imaging system prior to any treatment. Subjects were divided into two groups, separating the mild (under 20°) from the moderate (20° and over) spinal scoliotic deformities. Wedging was calculated in three different geometric planes with respect to the smallest edge of the vertebral body.<h4>Results</h4>Factorial analyses of variance revealed a main effect for the scoliosis severity but no main effect of vertebral Levels (apex and each of the three vertebrae above and below it) (F = 1.78, p = 0.101). Main effects of vertebral Positions (apex and above or below it) (F = 4.20, p = 0.015) and wedging Planes (F = 34.36, p<0.001) were also noted. Post-hoc analysis demonstrated a greater wedging in the inferior group of vertebrae (3.6°) than the superior group (2.9°, p = 0.019) and a significantly greater wedging (p≤0.03) along the sagittal plane (4.3°).<h4>Conclusions</h4>Vertebral wedging was present in mild scoliosis and increased as the scoliosis progressed. The greater wedging of the inferior group of vertebrae could be important in estimating the most distal vertebral segment to be restrained by bracing or to be fused in surgery. Largest vertebral body wedging values obtained in the sagittal plane support the claim that scoliosis could be initiated through a hypokyphosis.Sophie-Anne ScherrerMickaël BegonAlberto LeardiniChristine CoillardCharles-Hilaire RivardPaul AllardPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 8, p e71504 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Sophie-Anne Scherrer Mickaël Begon Alberto Leardini Christine Coillard Charles-Hilaire Rivard Paul Allard Three-dimensional vertebral wedging in mild and moderate adolescent idiopathic scoliosis.
description	<h4>Background</h4>Vertebral wedging is associated with spinal deformity progression in adolescent idiopathic scoliosis. Reporting frontal and sagittal wedging separately could be misleading since these are projected values of a single three-dimensional deformation of the vertebral body. The objectives of this study were to determine if three-dimensional vertebral body wedging is present in mild scoliosis and if there are a preferential vertebral level, position and plane of deformation with increasing scoliotic severity.<h4>Methodology</h4>Twenty-seven adolescent idiopathic scoliotic girls with mild to moderate Cobb angles (10° to 50°) participated in this study. All subjects had at least one set of bi-planar radiographs taken with the EOS® X-ray imaging system prior to any treatment. Subjects were divided into two groups, separating the mild (under 20°) from the moderate (20° and over) spinal scoliotic deformities. Wedging was calculated in three different geometric planes with respect to the smallest edge of the vertebral body.<h4>Results</h4>Factorial analyses of variance revealed a main effect for the scoliosis severity but no main effect of vertebral Levels (apex and each of the three vertebrae above and below it) (F = 1.78, p = 0.101). Main effects of vertebral Positions (apex and above or below it) (F = 4.20, p = 0.015) and wedging Planes (F = 34.36, p<0.001) were also noted. Post-hoc analysis demonstrated a greater wedging in the inferior group of vertebrae (3.6°) than the superior group (2.9°, p = 0.019) and a significantly greater wedging (p≤0.03) along the sagittal plane (4.3°).<h4>Conclusions</h4>Vertebral wedging was present in mild scoliosis and increased as the scoliosis progressed. The greater wedging of the inferior group of vertebrae could be important in estimating the most distal vertebral segment to be restrained by bracing or to be fused in surgery. Largest vertebral body wedging values obtained in the sagittal plane support the claim that scoliosis could be initiated through a hypokyphosis.
format	article
author	Sophie-Anne Scherrer Mickaël Begon Alberto Leardini Christine Coillard Charles-Hilaire Rivard Paul Allard
author_facet	Sophie-Anne Scherrer Mickaël Begon Alberto Leardini Christine Coillard Charles-Hilaire Rivard Paul Allard
author_sort	Sophie-Anne Scherrer
title	Three-dimensional vertebral wedging in mild and moderate adolescent idiopathic scoliosis.
title_short	Three-dimensional vertebral wedging in mild and moderate adolescent idiopathic scoliosis.
title_full	Three-dimensional vertebral wedging in mild and moderate adolescent idiopathic scoliosis.
title_fullStr	Three-dimensional vertebral wedging in mild and moderate adolescent idiopathic scoliosis.
title_full_unstemmed	Three-dimensional vertebral wedging in mild and moderate adolescent idiopathic scoliosis.
title_sort	three-dimensional vertebral wedging in mild and moderate adolescent idiopathic scoliosis.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/32ce553ef63547bd8989f3379f02d76f
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Three-dimensional vertebral wedging in mild and moderate adolescent idiopathic scoliosis.

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