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Quantitative anatomy of the growing quadratus lumborum in the human foetus
PURPOSES: The purpose of the study was to quantitatively evaluate the size of the quadratus lumborum and to precisely display its growth dynamics in the human foetus. MATERIALS AND METHODS: Using anatomical dissection, digital-image analysis (NIS Elements AR 3.0) and statistical analysis (Student’s...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Paris
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5820394/ https://www.ncbi.nlm.nih.gov/pubmed/28756538 http://dx.doi.org/10.1007/s00276-017-1901-4 |
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author | Grzonkowska, Magdalena Baumgart, Mariusz Badura, Mateusz Dombek, Małgorzata Wiśniewski, Marcin Paruszewska-Achtel, Monika Szpinda, Michał |
author_facet | Grzonkowska, Magdalena Baumgart, Mariusz Badura, Mateusz Dombek, Małgorzata Wiśniewski, Marcin Paruszewska-Achtel, Monika Szpinda, Michał |
author_sort | Grzonkowska, Magdalena |
collection | PubMed |
description | PURPOSES: The purpose of the study was to quantitatively evaluate the size of the quadratus lumborum and to precisely display its growth dynamics in the human foetus. MATERIALS AND METHODS: Using anatomical dissection, digital-image analysis (NIS Elements AR 3.0) and statistical analysis (Student’s t test, regression analysis), the length, width, surface area, and cross-sectional area of the quadratus lumborum were measured, and the width-to-length ratio was calculated in 58 human foetuses of both sexes (26♂, 32♀) aged 16–27 weeks. RESULTS: Neither sex nor right-left significant differences were found in relation with the numerical data of the growing quadratus lumborum. The length, width, and cross-sectional area of the quadratus lumborum muscle increased logarithmically, while its surface area increased proportionately to fetal age. The following growth models were computed for the quadratus lumborum: y = −70.397 + 68.501 × ln(age) ± 1.170 for length, y = −20.435 + 8.815 × ln(age) ± 0.703 for width, y = −196.035 + 14.838 × age ± 13.745 for surface area, and y = −48.958 + 20.909 × ln(age) ± 1.100 for cross-sectional area. CONCLUSIONS: The fetal quadratus lumborum reveals neither sex nor bilateral differences. An increase in length and width of the growing quadratus lumborum follows in a commensurate fashion. The quadratus lumborum grows logarithmically with respect to its length, width, and cross-sectional area, and proportionately to age with respect to its surface area. |
format | Online Article Text |
id | pubmed-5820394 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Springer Paris |
record_format | MEDLINE/PubMed |
spelling | pubmed-58203942018-02-27 Quantitative anatomy of the growing quadratus lumborum in the human foetus Grzonkowska, Magdalena Baumgart, Mariusz Badura, Mateusz Dombek, Małgorzata Wiśniewski, Marcin Paruszewska-Achtel, Monika Szpinda, Michał Surg Radiol Anat Original Article PURPOSES: The purpose of the study was to quantitatively evaluate the size of the quadratus lumborum and to precisely display its growth dynamics in the human foetus. MATERIALS AND METHODS: Using anatomical dissection, digital-image analysis (NIS Elements AR 3.0) and statistical analysis (Student’s t test, regression analysis), the length, width, surface area, and cross-sectional area of the quadratus lumborum were measured, and the width-to-length ratio was calculated in 58 human foetuses of both sexes (26♂, 32♀) aged 16–27 weeks. RESULTS: Neither sex nor right-left significant differences were found in relation with the numerical data of the growing quadratus lumborum. The length, width, and cross-sectional area of the quadratus lumborum muscle increased logarithmically, while its surface area increased proportionately to fetal age. The following growth models were computed for the quadratus lumborum: y = −70.397 + 68.501 × ln(age) ± 1.170 for length, y = −20.435 + 8.815 × ln(age) ± 0.703 for width, y = −196.035 + 14.838 × age ± 13.745 for surface area, and y = −48.958 + 20.909 × ln(age) ± 1.100 for cross-sectional area. CONCLUSIONS: The fetal quadratus lumborum reveals neither sex nor bilateral differences. An increase in length and width of the growing quadratus lumborum follows in a commensurate fashion. The quadratus lumborum grows logarithmically with respect to its length, width, and cross-sectional area, and proportionately to age with respect to its surface area. Springer Paris 2017-07-29 2018 /pmc/articles/PMC5820394/ /pubmed/28756538 http://dx.doi.org/10.1007/s00276-017-1901-4 Text en © The Author(s) 2017 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
spellingShingle | Original Article Grzonkowska, Magdalena Baumgart, Mariusz Badura, Mateusz Dombek, Małgorzata Wiśniewski, Marcin Paruszewska-Achtel, Monika Szpinda, Michał Quantitative anatomy of the growing quadratus lumborum in the human foetus |
title | Quantitative anatomy of the growing quadratus lumborum in the human foetus |
title_full | Quantitative anatomy of the growing quadratus lumborum in the human foetus |
title_fullStr | Quantitative anatomy of the growing quadratus lumborum in the human foetus |
title_full_unstemmed | Quantitative anatomy of the growing quadratus lumborum in the human foetus |
title_short | Quantitative anatomy of the growing quadratus lumborum in the human foetus |
title_sort | quantitative anatomy of the growing quadratus lumborum in the human foetus |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5820394/ https://www.ncbi.nlm.nih.gov/pubmed/28756538 http://dx.doi.org/10.1007/s00276-017-1901-4 |
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