open access

Ahead of Print
ORIGINAL ARTICLES
Published online: 2020-09-02
Submitted: 2020-07-25
Accepted: 2020-08-19
Get Citation

Anatomic morphological study of thoracolumbar foramen in normal adults

Y. Wang, Y. Cai, Y. Xu, H. Guan, M. Gao, Y. He, L. Wang, H. Wang, X. Li, Z. Li, J. Yu, Y. Fu, Y. Zhang, Y. Zhao, D. Xin
DOI: 10.5603/FM.a2020.0107
·
Pubmed: 32896872

open access

Ahead of Print
ORIGINAL ARTICLES
Published online: 2020-09-02
Submitted: 2020-07-25
Accepted: 2020-08-19

Abstract

Background: Based on CT images of the thoracolumbar intervertebral foramen and its surrounding parameters, and analyzing the intervertebral foramen morphology and the correlation between the measured parameters, to provide an anatomical basis for clinical minimally invasive transvertebral surgery.

Materials and methods: Ten fresh adult cadaveric specimens (32-50 years old) with bilateral (T1-S1) spinal segments were selected for a total of 20 sides, a total of 340 intervertebral foramen, were measured with vernier calipers in the Department of Anatomy, Inner Mongolia Medical University. The intervertebral foramen height, the minimum sagittal diameter of the foramen, the width of the spinal ganglion, the sagittal diameter of the spinal ganglion and the sagittal diameter of the intervertebral foramen were measured. This study was reviewed and approved by the local Ethics Committee.

Results: The results of the minimum sagittal diameter of the T9-10~L5/S1 intervertebral foramen were 6.93 ± 1.99 mm, 7.33 ± 1.44 mm, 7.41 ± 0.63 mm, 6.85 ± 1.08 mm, 6.79 ± 1.86 mm, 7.82 ± 3.25 mm, 8.23 ± 2.27 mm, 9.17 ± 2.33 mm, 8.38 ± 1.63 mm; the average height of the T2/3 to L5/S1 intervertebral space was 4.82 ± 1.88 mm, 3.95 ± 0.80 mm, 4.04 ± 0.52 mm, 4.26 ± 0.78 mm, 4.39 ± 1.16 mm, 5.15 ± 1.59 mm, 5.51 ± 1.49 mm, 5.97 ± 2.60 mm, 7.13 ± 2.07 mm, 8.94 ± 1.37 mm, 9.01 ± 1.47 mm, 11.63 ± 1.63 mm, 14.20 ± 1.37 mm, 14.22 ± 2.33 mm, 14.22 ± 2.33 mm, 13.32 ± 1.37 mm. intervertebral foramen height, intervertebral foramen minimum sagittal diameter, spinal ganglion width, spinal ganglion sagittal diameter. P>0.05 for comparison of the left and right sides of the intervertebral space, with no statistically significant difference. L4/5, L5/S1 segment left and right bilateral contrast with the middle height of the vertebral space P < 0.05, the difference is statistically significant. The remaining segments left and right bilaterally contrasted P>0.05, and the difference was not statistically significant.

Conclusions: The minimum height of intervertebral foramen in the thoracolumbar segment was T6/7, and L1/2 was the minimum height in the lumbar segment. When placing a spinal endoscopic working channel safely into intervertebral foramen, it is necessary to perform an enlarging foraminoplasty to reduce the risk of injury to the exiting nerve root.

Abstract

Background: Based on CT images of the thoracolumbar intervertebral foramen and its surrounding parameters, and analyzing the intervertebral foramen morphology and the correlation between the measured parameters, to provide an anatomical basis for clinical minimally invasive transvertebral surgery.

Materials and methods: Ten fresh adult cadaveric specimens (32-50 years old) with bilateral (T1-S1) spinal segments were selected for a total of 20 sides, a total of 340 intervertebral foramen, were measured with vernier calipers in the Department of Anatomy, Inner Mongolia Medical University. The intervertebral foramen height, the minimum sagittal diameter of the foramen, the width of the spinal ganglion, the sagittal diameter of the spinal ganglion and the sagittal diameter of the intervertebral foramen were measured. This study was reviewed and approved by the local Ethics Committee.

Results: The results of the minimum sagittal diameter of the T9-10~L5/S1 intervertebral foramen were 6.93 ± 1.99 mm, 7.33 ± 1.44 mm, 7.41 ± 0.63 mm, 6.85 ± 1.08 mm, 6.79 ± 1.86 mm, 7.82 ± 3.25 mm, 8.23 ± 2.27 mm, 9.17 ± 2.33 mm, 8.38 ± 1.63 mm; the average height of the T2/3 to L5/S1 intervertebral space was 4.82 ± 1.88 mm, 3.95 ± 0.80 mm, 4.04 ± 0.52 mm, 4.26 ± 0.78 mm, 4.39 ± 1.16 mm, 5.15 ± 1.59 mm, 5.51 ± 1.49 mm, 5.97 ± 2.60 mm, 7.13 ± 2.07 mm, 8.94 ± 1.37 mm, 9.01 ± 1.47 mm, 11.63 ± 1.63 mm, 14.20 ± 1.37 mm, 14.22 ± 2.33 mm, 14.22 ± 2.33 mm, 13.32 ± 1.37 mm. intervertebral foramen height, intervertebral foramen minimum sagittal diameter, spinal ganglion width, spinal ganglion sagittal diameter. P>0.05 for comparison of the left and right sides of the intervertebral space, with no statistically significant difference. L4/5, L5/S1 segment left and right bilateral contrast with the middle height of the vertebral space P < 0.05, the difference is statistically significant. The remaining segments left and right bilaterally contrasted P>0.05, and the difference was not statistically significant.

Conclusions: The minimum height of intervertebral foramen in the thoracolumbar segment was T6/7, and L1/2 was the minimum height in the lumbar segment. When placing a spinal endoscopic working channel safely into intervertebral foramen, it is necessary to perform an enlarging foraminoplasty to reduce the risk of injury to the exiting nerve root.

Get Citation

Keywords

adult, thoracic spine, lumbar spine, intervertebral foramen, anatomical measurements

About this article
Title

Anatomic morphological study of thoracolumbar foramen in normal adults

Journal

Folia Morphologica

Issue

Ahead of Print

Published online

2020-09-02

DOI

10.5603/FM.a2020.0107

Pubmed

32896872

Keywords

adult
thoracic spine
lumbar spine
intervertebral foramen
anatomical measurements

Authors

Y. Wang
Y. Cai
Y. Xu
H. Guan
M. Gao
Y. He
L. Wang
H. Wang
X. Li
Z. Li
J. Yu
Y. Fu
Y. Zhang
Y. Zhao
D. Xin

Important: This website uses cookies. More >>

The cookies allow us to identify your computer and find out details about your last visit. They remembering whether you've visited the site before, so that you remain logged in - or to help us work out how many new website visitors we get each month. Most internet browsers accept cookies automatically, but you can change the settings of your browser to erase cookies or prevent automatic acceptance if you prefer.

By  "Via Medica sp. z o.o." sp.k., Świętokrzyska 73, 80–180 Gdańsk, Poland

tel.:+48 58 320 94 94, faks:+48 58 320 94 60, e-mail:  viamedica@viamedica.pl