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The Large Individual Differences in the Range of Hip Joint Motion Rather Than Lumbar Spine Motion Affect Dynamic Spinopelvic Rhythm

INTRODUCTION: Global spinal balance and its relationship to the pelvis have received much attention, and various formulae have been used to predict postoperative spinopelvic alignment for spinal surgery. However, previous studies had limitations because no consideration was given to the dynamic fact...

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Autores principales: Yoshioka, Katsuhito, Murakami, Hideki, Demura, Satoru, Kato, Satoshi, Kawashima, Hiroki, Sanada, Shigeru, Tsuchiya, Hiroyuki
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Japanese Society for Spine Surgery and Related Research 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6698516/
https://www.ncbi.nlm.nih.gov/pubmed/31440685
http://dx.doi.org/10.22603/ssrr.2018-0089
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author Yoshioka, Katsuhito
Murakami, Hideki
Demura, Satoru
Kato, Satoshi
Kawashima, Hiroki
Sanada, Shigeru
Tsuchiya, Hiroyuki
author_facet Yoshioka, Katsuhito
Murakami, Hideki
Demura, Satoru
Kato, Satoshi
Kawashima, Hiroki
Sanada, Shigeru
Tsuchiya, Hiroyuki
author_sort Yoshioka, Katsuhito
collection PubMed
description INTRODUCTION: Global spinal balance and its relationship to the pelvis have received much attention, and various formulae have been used to predict postoperative spinopelvic alignment for spinal surgery. However, previous studies had limitations because no consideration was given to the dynamic factor. METHODS: Fifteen healthy adults without any lumbar disorder (group A) and 9 L4-spondylolisthesis patients (Group B) volunteered to participate in the study. Sequential images were captured with the subjects in the standing position with maximal forward bending followed by backward bending using a dynamic flat panel detector system. Spinopelvic parameters (LL: lumbar lordosis, SA: sacrofemoral angle, SS: sacral slope, PI: pelvic incidence, DP: distance of the horizontal movement of the pelvis) were evaluated. We also investigated the relationship between LL and SA (lumbar/hip [L/H] ratio) as the spinopelvic rhythm. RESULTS: In group A, the mean change in LL was 83.2 ± 9.5°; change in SA, 45.4 ± 16.6°; SS, 42.6 ± 8.9°; PI, 43.2 ± 7.7°; DP, 15.7 ± 3.4 cm, and L/H ratio, 3.6 ± 2.7. However, spinopelvic rhythm changed over time, because the change in LL was larger than the change in SA from the middle of the rising motion to the upright position. In group B, the mean change in LL was 50.3 ± 8.0°; SA, 56.9 ± 16.0°; SS, 27.5 ± 13.5°; PI, 47.4 ± 10.4°; DP, 12.7 ± 6.8 cm; and L/H ratio, 1.0 ± 0.5. CONCLUSIONS: When compared with the change in LL, individual differences were largely noted in the change in SA. These results demonstrated that the range of hip joint motion under physiological conditions, unlike anatomical motion, differed substantially between individuals. Therefore, spinopelvic rhythm is dependent on the change in SA.
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spelling pubmed-66985162019-08-22 The Large Individual Differences in the Range of Hip Joint Motion Rather Than Lumbar Spine Motion Affect Dynamic Spinopelvic Rhythm Yoshioka, Katsuhito Murakami, Hideki Demura, Satoru Kato, Satoshi Kawashima, Hiroki Sanada, Shigeru Tsuchiya, Hiroyuki Spine Surg Relat Res Original Article INTRODUCTION: Global spinal balance and its relationship to the pelvis have received much attention, and various formulae have been used to predict postoperative spinopelvic alignment for spinal surgery. However, previous studies had limitations because no consideration was given to the dynamic factor. METHODS: Fifteen healthy adults without any lumbar disorder (group A) and 9 L4-spondylolisthesis patients (Group B) volunteered to participate in the study. Sequential images were captured with the subjects in the standing position with maximal forward bending followed by backward bending using a dynamic flat panel detector system. Spinopelvic parameters (LL: lumbar lordosis, SA: sacrofemoral angle, SS: sacral slope, PI: pelvic incidence, DP: distance of the horizontal movement of the pelvis) were evaluated. We also investigated the relationship between LL and SA (lumbar/hip [L/H] ratio) as the spinopelvic rhythm. RESULTS: In group A, the mean change in LL was 83.2 ± 9.5°; change in SA, 45.4 ± 16.6°; SS, 42.6 ± 8.9°; PI, 43.2 ± 7.7°; DP, 15.7 ± 3.4 cm, and L/H ratio, 3.6 ± 2.7. However, spinopelvic rhythm changed over time, because the change in LL was larger than the change in SA from the middle of the rising motion to the upright position. In group B, the mean change in LL was 50.3 ± 8.0°; SA, 56.9 ± 16.0°; SS, 27.5 ± 13.5°; PI, 47.4 ± 10.4°; DP, 12.7 ± 6.8 cm; and L/H ratio, 1.0 ± 0.5. CONCLUSIONS: When compared with the change in LL, individual differences were largely noted in the change in SA. These results demonstrated that the range of hip joint motion under physiological conditions, unlike anatomical motion, differed substantially between individuals. Therefore, spinopelvic rhythm is dependent on the change in SA. The Japanese Society for Spine Surgery and Related Research 2019-03-22 /pmc/articles/PMC6698516/ /pubmed/31440685 http://dx.doi.org/10.22603/ssrr.2018-0089 Text en Copyright © 2019 by The Japanese Society for Spine Surgery and Related Research https://creativecommons.org/licenses/by-nc-nd/4.0/ Spine Surgery and Related Research is an Open Access journal distributed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. To view the details of this license, please visit (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Original Article
Yoshioka, Katsuhito
Murakami, Hideki
Demura, Satoru
Kato, Satoshi
Kawashima, Hiroki
Sanada, Shigeru
Tsuchiya, Hiroyuki
The Large Individual Differences in the Range of Hip Joint Motion Rather Than Lumbar Spine Motion Affect Dynamic Spinopelvic Rhythm
title The Large Individual Differences in the Range of Hip Joint Motion Rather Than Lumbar Spine Motion Affect Dynamic Spinopelvic Rhythm
title_full The Large Individual Differences in the Range of Hip Joint Motion Rather Than Lumbar Spine Motion Affect Dynamic Spinopelvic Rhythm
title_fullStr The Large Individual Differences in the Range of Hip Joint Motion Rather Than Lumbar Spine Motion Affect Dynamic Spinopelvic Rhythm
title_full_unstemmed The Large Individual Differences in the Range of Hip Joint Motion Rather Than Lumbar Spine Motion Affect Dynamic Spinopelvic Rhythm
title_short The Large Individual Differences in the Range of Hip Joint Motion Rather Than Lumbar Spine Motion Affect Dynamic Spinopelvic Rhythm
title_sort large individual differences in the range of hip joint motion rather than lumbar spine motion affect dynamic spinopelvic rhythm
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6698516/
https://www.ncbi.nlm.nih.gov/pubmed/31440685
http://dx.doi.org/10.22603/ssrr.2018-0089
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