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Differences in Involvement of Whole-Body Compensatory Alignment for Decompensated Spinopelvic Sagittal Balance

Background: The aim of this study was to investigate the differences in the involvement of whole-body compensatory alignment in different conditions of spinopelvic sagittal balance (compensated/decompensated). Methods: We enrolled 330 individuals who underwent medical checkups and divided them accor...

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Autores principales: Ouchida, Jun, Nakashima, Hiroaki, Kanemura, Tokumi, Ito, Kenyu, Tsushima, Mikito, Machino, Masaaki, Ito, Sadayuki, Segi, Naoki, Ode, Yukihito, Imagama, Shiro
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10381014/
https://www.ncbi.nlm.nih.gov/pubmed/37510804
http://dx.doi.org/10.3390/jcm12144690
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author Ouchida, Jun
Nakashima, Hiroaki
Kanemura, Tokumi
Ito, Kenyu
Tsushima, Mikito
Machino, Masaaki
Ito, Sadayuki
Segi, Naoki
Ode, Yukihito
Imagama, Shiro
author_facet Ouchida, Jun
Nakashima, Hiroaki
Kanemura, Tokumi
Ito, Kenyu
Tsushima, Mikito
Machino, Masaaki
Ito, Sadayuki
Segi, Naoki
Ode, Yukihito
Imagama, Shiro
author_sort Ouchida, Jun
collection PubMed
description Background: The aim of this study was to investigate the differences in the involvement of whole-body compensatory alignment in different conditions of spinopelvic sagittal balance (compensated/decompensated). Methods: We enrolled 330 individuals who underwent medical checkups and divided them according to sagittal vertical axis (SVA): for the compensated group, this was <4 cm, (group C) and for the decompensated group, it was ≥4 cm, (group D). The correlation between the lack of ideal lumbar lordosis (iLL), which was calculated by using the Schwab formula, and the compensatory radiographic parameters in each group was analyzed. The threshold value of knee flexion (KF) angle, which indicated spinopelvic sagittal imbalance (SVA ≥ 4), was determined by a ROC-curve analysis. Results: The correlation analysis of the lack of iLL and each compensatory parameter showed a strong correlation for pelvic tilt (PT) (r = −0.723), and a weak correlation for thoracic kyphosis (TK) (r = 275) in Group C. In Group D, the correlations were strong for PT (r = −0.796), and moderate for TK (r = 0.462) and KF (r = −0.415). The optimal cutoff value for the KF angle was determined to be 8.4 degrees (sensitivity 89%, specificity 46%). Conclusions: The present study shows differences between compensated/decompensated spinopelvic sagittal balance in the correlation strength between lack of iLL and whole-body compensatory parameters.
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spelling pubmed-103810142023-07-29 Differences in Involvement of Whole-Body Compensatory Alignment for Decompensated Spinopelvic Sagittal Balance Ouchida, Jun Nakashima, Hiroaki Kanemura, Tokumi Ito, Kenyu Tsushima, Mikito Machino, Masaaki Ito, Sadayuki Segi, Naoki Ode, Yukihito Imagama, Shiro J Clin Med Article Background: The aim of this study was to investigate the differences in the involvement of whole-body compensatory alignment in different conditions of spinopelvic sagittal balance (compensated/decompensated). Methods: We enrolled 330 individuals who underwent medical checkups and divided them according to sagittal vertical axis (SVA): for the compensated group, this was <4 cm, (group C) and for the decompensated group, it was ≥4 cm, (group D). The correlation between the lack of ideal lumbar lordosis (iLL), which was calculated by using the Schwab formula, and the compensatory radiographic parameters in each group was analyzed. The threshold value of knee flexion (KF) angle, which indicated spinopelvic sagittal imbalance (SVA ≥ 4), was determined by a ROC-curve analysis. Results: The correlation analysis of the lack of iLL and each compensatory parameter showed a strong correlation for pelvic tilt (PT) (r = −0.723), and a weak correlation for thoracic kyphosis (TK) (r = 275) in Group C. In Group D, the correlations were strong for PT (r = −0.796), and moderate for TK (r = 0.462) and KF (r = −0.415). The optimal cutoff value for the KF angle was determined to be 8.4 degrees (sensitivity 89%, specificity 46%). Conclusions: The present study shows differences between compensated/decompensated spinopelvic sagittal balance in the correlation strength between lack of iLL and whole-body compensatory parameters. MDPI 2023-07-14 /pmc/articles/PMC10381014/ /pubmed/37510804 http://dx.doi.org/10.3390/jcm12144690 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ouchida, Jun
Nakashima, Hiroaki
Kanemura, Tokumi
Ito, Kenyu
Tsushima, Mikito
Machino, Masaaki
Ito, Sadayuki
Segi, Naoki
Ode, Yukihito
Imagama, Shiro
Differences in Involvement of Whole-Body Compensatory Alignment for Decompensated Spinopelvic Sagittal Balance
title Differences in Involvement of Whole-Body Compensatory Alignment for Decompensated Spinopelvic Sagittal Balance
title_full Differences in Involvement of Whole-Body Compensatory Alignment for Decompensated Spinopelvic Sagittal Balance
title_fullStr Differences in Involvement of Whole-Body Compensatory Alignment for Decompensated Spinopelvic Sagittal Balance
title_full_unstemmed Differences in Involvement of Whole-Body Compensatory Alignment for Decompensated Spinopelvic Sagittal Balance
title_short Differences in Involvement of Whole-Body Compensatory Alignment for Decompensated Spinopelvic Sagittal Balance
title_sort differences in involvement of whole-body compensatory alignment for decompensated spinopelvic sagittal balance
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10381014/
https://www.ncbi.nlm.nih.gov/pubmed/37510804
http://dx.doi.org/10.3390/jcm12144690
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