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European Spine Journal

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01-02-2016 | Original Article

Analysis of the relationship between coronal and sagittal deformities in adolescent idiopathic scoliosis

Authors: Panpan Hu, Miao Yu, Xiao Liu, Bin Zhu, Xiaoguang Liu, Zhongjun Liu

Published in: European Spine Journal | Issue 2/2016

Abstract

Purpose

To characterize the sagittal alignment of each Lenke type and investigate the relationship between coronal and sagittal deformities in adolescent idiopathic scoliotic (AIS) patients.

Methods

A cohort of 184 subjects with AIS was retrospectively recruited. Radiographic data were measured and collected, including the Lenke types, Cobb angles of structural curves, and sagittal spino-pelvic parameters. Subjects were grouped according to their genders, Lenke curve types, lumbar modifiers and the amount of coronal structural curves. The sagittal alignment was then compared between the different groups, and correlation analysis was also taken between coronal and sagittal parameters. Besides, each subject’s Roussouly type was decided and its distribution was compared among different Lenke types.

Results

The cohort included 59 males and 125 females, averagely aged at 15.5 ± 3.3 years old. Most sagittal parameters except thoracic kyphosis (TK) and pelvic tilt (PT) were similar among different Lenke types, while all the sagittal parameters were similar between males and females. The groups with different lumbar modifiers had similar sagittal parameters except TK, which was also true for the groups with different amounts of coronal curves. 42.4 % of the cohort belonged to Roussouly type 3, and the distribution of Roussouly types was comparable among all Lenke types. All sagittal parameters except C7 translation ratio were significantly different among Roussouly types (P < 0.05). Correlation analysis showed that main thoracic (MT) was negatively correlated with lumbar lordosis (LL, r = −0.324), sacral slope (r = −0.321) and spino-sacral angle (r = −0.363). Partial correlation analysis found that thoracolumbar/lumbar was negatively correlated with TK (r = −0.464) and LL (r = −0.422) when MT was controlled.

Conclusions

The influence of coronal deformity on sagittal parameters was limited and mainly reflected in the deviation of TK. Most coronal and sagittal parameters were not significantly correlated, and the coronal deformity types did not change the global sagittal postural patterns.

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Title: Analysis of the relationship between coronal and sagittal deformities in adolescent idiopathic scoliosis
Authors: Panpan Hu
Miao Yu
Xiao Liu
Bin Zhu
Xiaoguang Liu
Zhongjun Liu
Publication date: 01-02-2016
Publisher: Springer Berlin Heidelberg
Published in: European Spine Journal / Issue 2/2016
Print ISSN: 0940-6719
Electronic ISSN: 1432-0932
DOI: https://doi.org/10.1007/s00586-015-3986-y

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Analysis of the relationship between coronal and sagittal deformities in adolescent idiopathic scoliosis

Abstract

Purpose

Methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusions

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