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Original article
Submitted: 2021-07-03
Accepted: 2021-10-18
Published online: 2021-11-09
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Human lumbosacral root and ligamentum flavum thicknesses: a magnetic resonance study

R. Khasawneh1, E. Abu El-Rub1, M. Allouh23
DOI: 10.5603/FM.a2021.0120
·
Pubmed: 34783005
Affiliations
  1. Department of Basic Medical Sciences, Faculty of Medicine, Yarmouk University, Irbid, Jordan
  2. Department of Anatomy, Faculty of Medicine, Jordan university of sceince and technology, Irbid, Jordan
  3. Department of Anatomy, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates

open access

Ahead of Print
ORIGINAL ARTICLES
Submitted: 2021-07-03
Accepted: 2021-10-18
Published online: 2021-11-09

Abstract

Background: This study investigated the lumbosacral plexus (LSP) nerve root thickness and ligamentum flavum (LF) thickness and correlated them with age and sex. These findings provided a useful data for spinal nerve root micro-anastomosis surgery and lumbar decompression surgery.

Materials and methods: This retrospective study was conducted with 350 individuals with ages ranging from 21 to 80 years of age under magnetic resonance imaging (MRI) to evaluated the possible cause of a lower back pain.

Results: According to the morphometric measurements of the LSP root thickness, the diameter gradually increased from L1 to S1. L1 has the thinnest root (3.9 ± 0.81 mm) while S1 has the thickest root (5.45 ± 0.8 mm). The measurements revealed inconsiderable differences in the LSP thickness in relation to age, sex in the study population. Regarding the LF, the thickness of the LF was found to be insignificantly increase with age. Besides, the LF thickness was inconsequentially higher in female. The mean thickness of the right LF at different spinal levels was measured (L2-L3 = 3.19 ± 0.27, L3–L4 = 3.38 ± 0.11 mm, L4–L5 = 3.71 ± 0.29 mm, and L5–S1 = 3.64 ± 0.21 mm). The mean thickness of the left LF was non significantly higher.

Conclusions: The LSP root and LF thicknesses not related to age or sex.

Abstract

Background: This study investigated the lumbosacral plexus (LSP) nerve root thickness and ligamentum flavum (LF) thickness and correlated them with age and sex. These findings provided a useful data for spinal nerve root micro-anastomosis surgery and lumbar decompression surgery.

Materials and methods: This retrospective study was conducted with 350 individuals with ages ranging from 21 to 80 years of age under magnetic resonance imaging (MRI) to evaluated the possible cause of a lower back pain.

Results: According to the morphometric measurements of the LSP root thickness, the diameter gradually increased from L1 to S1. L1 has the thinnest root (3.9 ± 0.81 mm) while S1 has the thickest root (5.45 ± 0.8 mm). The measurements revealed inconsiderable differences in the LSP thickness in relation to age, sex in the study population. Regarding the LF, the thickness of the LF was found to be insignificantly increase with age. Besides, the LF thickness was inconsequentially higher in female. The mean thickness of the right LF at different spinal levels was measured (L2-L3 = 3.19 ± 0.27, L3–L4 = 3.38 ± 0.11 mm, L4–L5 = 3.71 ± 0.29 mm, and L5–S1 = 3.64 ± 0.21 mm). The mean thickness of the left LF was non significantly higher.

Conclusions: The LSP root and LF thicknesses not related to age or sex.

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Keywords

lumbosacral plexus, ligamentum flavum, spinal nerve root, magnetic resonance image

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About this article
Title

Human lumbosacral root and ligamentum flavum thicknesses: a magnetic resonance study

Journal

Folia Morphologica

Issue

Ahead of Print

Article type

Original article

Published online

2021-11-09

Page views

321

Article views/downloads

155

DOI

10.5603/FM.a2021.0120

Pubmed

34783005

Keywords

lumbosacral plexus
ligamentum flavum
spinal nerve root
magnetic resonance image

Authors

R. Khasawneh
E. Abu El-Rub
M. Allouh

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