Comparative assessment of pedicle morphology of the lumbar spine in various degenerative diseases

Kenya Nojiri, Morio Matsumoto, Kazuhiro Chiba, Yoshiaki Toyama, Suketaka Momoshima

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Measurement of the morphological dimensions of the pedicles of the lumbar spine was conducted using computed tomography (CT) to clarify the difference in pedicle morphology among different lumbar degenerative diseases. The subjects were 136 patients with lumbar spinal disorders who underwent myelography followed by CT scans. They were divided into four groups, that is a group of 25 patients with degenerative spondylolisthesis (DS group), a group of 54 patients with lumbar canal stenosis (LCS group), a group of 42 patients with lumbar disc herniation (LDH group), and a control group of 15 patients with spinal cord tumor in cervicothoracic region but without lumbar diseases (control group). Measurements of the transverse diameter, axial length, and axial angle of the pedicles were performed on CT slices obtained at the middle of the pedicle. The transverse diameter was the width of the isthmus, the axial length was the distance between the anterior of the vertebral body and the posterior of the vertebral arch on a line perpendicular to the line bisecting the isthmus, and the axial angle was the angle between the line perpendicular to the line bisecting the isthmus and the midline of the vertebral body. While there were no significant differences in the mean transverse diameter or axial length among the four groups, the mean axial angle was significantly smaller in the DS and LCS groups when compared to that in the LDH and control groups. In the DS and LCS groups, the pedicles were more sagitally oriented than in the LDH and control groups. Such difference in the axial angle of the pedicles in different lumbar diseases should be taken into consideration when placing at the insertion of pedicle screws, because precise orientation of screw insertion would scarcely allow penetration of the pedicle wall.

Original languageEnglish
Pages (from-to)317-321
Number of pages5
JournalSurgical and Radiologic Anatomy
Volume27
Issue number4
DOIs
Publication statusPublished - 2005 Nov

Fingerprint

Spine
Control Groups
Tomography
Spinal Cord Neoplasms
Spondylolisthesis
Lumbosacral Region
Myelography
Pathologic Constriction

Keywords

  • Computed tomography
  • Lumbar degenerative disease
  • Morphology
  • Vertebral pedicle

ASJC Scopus subject areas

  • Anatomy
  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

Cite this

Comparative assessment of pedicle morphology of the lumbar spine in various degenerative diseases. / Nojiri, Kenya; Matsumoto, Morio; Chiba, Kazuhiro; Toyama, Yoshiaki; Momoshima, Suketaka.

In: Surgical and Radiologic Anatomy, Vol. 27, No. 4, 11.2005, p. 317-321.

Research output: Contribution to journalArticle

@article{0930cb32aecc4621915f258962796a7f,
title = "Comparative assessment of pedicle morphology of the lumbar spine in various degenerative diseases",
abstract = "Measurement of the morphological dimensions of the pedicles of the lumbar spine was conducted using computed tomography (CT) to clarify the difference in pedicle morphology among different lumbar degenerative diseases. The subjects were 136 patients with lumbar spinal disorders who underwent myelography followed by CT scans. They were divided into four groups, that is a group of 25 patients with degenerative spondylolisthesis (DS group), a group of 54 patients with lumbar canal stenosis (LCS group), a group of 42 patients with lumbar disc herniation (LDH group), and a control group of 15 patients with spinal cord tumor in cervicothoracic region but without lumbar diseases (control group). Measurements of the transverse diameter, axial length, and axial angle of the pedicles were performed on CT slices obtained at the middle of the pedicle. The transverse diameter was the width of the isthmus, the axial length was the distance between the anterior of the vertebral body and the posterior of the vertebral arch on a line perpendicular to the line bisecting the isthmus, and the axial angle was the angle between the line perpendicular to the line bisecting the isthmus and the midline of the vertebral body. While there were no significant differences in the mean transverse diameter or axial length among the four groups, the mean axial angle was significantly smaller in the DS and LCS groups when compared to that in the LDH and control groups. In the DS and LCS groups, the pedicles were more sagitally oriented than in the LDH and control groups. Such difference in the axial angle of the pedicles in different lumbar diseases should be taken into consideration when placing at the insertion of pedicle screws, because precise orientation of screw insertion would scarcely allow penetration of the pedicle wall.",
keywords = "Computed tomography, Lumbar degenerative disease, Morphology, Vertebral pedicle",
author = "Kenya Nojiri and Morio Matsumoto and Kazuhiro Chiba and Yoshiaki Toyama and Suketaka Momoshima",
year = "2005",
month = "11",
doi = "10.1007/s00276-005-0327-6",
language = "English",
volume = "27",
pages = "317--321",
journal = "Surgical and Radiologic Anatomy",
issn = "0930-1038",
publisher = "Springer Paris",
number = "4",

}

TY - JOUR

T1 - Comparative assessment of pedicle morphology of the lumbar spine in various degenerative diseases

AU - Nojiri, Kenya

AU - Matsumoto, Morio

AU - Chiba, Kazuhiro

AU - Toyama, Yoshiaki

AU - Momoshima, Suketaka

PY - 2005/11

Y1 - 2005/11

N2 - Measurement of the morphological dimensions of the pedicles of the lumbar spine was conducted using computed tomography (CT) to clarify the difference in pedicle morphology among different lumbar degenerative diseases. The subjects were 136 patients with lumbar spinal disorders who underwent myelography followed by CT scans. They were divided into four groups, that is a group of 25 patients with degenerative spondylolisthesis (DS group), a group of 54 patients with lumbar canal stenosis (LCS group), a group of 42 patients with lumbar disc herniation (LDH group), and a control group of 15 patients with spinal cord tumor in cervicothoracic region but without lumbar diseases (control group). Measurements of the transverse diameter, axial length, and axial angle of the pedicles were performed on CT slices obtained at the middle of the pedicle. The transverse diameter was the width of the isthmus, the axial length was the distance between the anterior of the vertebral body and the posterior of the vertebral arch on a line perpendicular to the line bisecting the isthmus, and the axial angle was the angle between the line perpendicular to the line bisecting the isthmus and the midline of the vertebral body. While there were no significant differences in the mean transverse diameter or axial length among the four groups, the mean axial angle was significantly smaller in the DS and LCS groups when compared to that in the LDH and control groups. In the DS and LCS groups, the pedicles were more sagitally oriented than in the LDH and control groups. Such difference in the axial angle of the pedicles in different lumbar diseases should be taken into consideration when placing at the insertion of pedicle screws, because precise orientation of screw insertion would scarcely allow penetration of the pedicle wall.

AB - Measurement of the morphological dimensions of the pedicles of the lumbar spine was conducted using computed tomography (CT) to clarify the difference in pedicle morphology among different lumbar degenerative diseases. The subjects were 136 patients with lumbar spinal disorders who underwent myelography followed by CT scans. They were divided into four groups, that is a group of 25 patients with degenerative spondylolisthesis (DS group), a group of 54 patients with lumbar canal stenosis (LCS group), a group of 42 patients with lumbar disc herniation (LDH group), and a control group of 15 patients with spinal cord tumor in cervicothoracic region but without lumbar diseases (control group). Measurements of the transverse diameter, axial length, and axial angle of the pedicles were performed on CT slices obtained at the middle of the pedicle. The transverse diameter was the width of the isthmus, the axial length was the distance between the anterior of the vertebral body and the posterior of the vertebral arch on a line perpendicular to the line bisecting the isthmus, and the axial angle was the angle between the line perpendicular to the line bisecting the isthmus and the midline of the vertebral body. While there were no significant differences in the mean transverse diameter or axial length among the four groups, the mean axial angle was significantly smaller in the DS and LCS groups when compared to that in the LDH and control groups. In the DS and LCS groups, the pedicles were more sagitally oriented than in the LDH and control groups. Such difference in the axial angle of the pedicles in different lumbar diseases should be taken into consideration when placing at the insertion of pedicle screws, because precise orientation of screw insertion would scarcely allow penetration of the pedicle wall.

KW - Computed tomography

KW - Lumbar degenerative disease

KW - Morphology

KW - Vertebral pedicle

UR - http://www.scopus.com/inward/record.url?scp=31044438080&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=31044438080&partnerID=8YFLogxK

U2 - 10.1007/s00276-005-0327-6

DO - 10.1007/s00276-005-0327-6

M3 - Article

C2 - 15968479

AN - SCOPUS:31044438080

VL - 27

SP - 317

EP - 321

JO - Surgical and Radiologic Anatomy

JF - Surgical and Radiologic Anatomy

SN - 0930-1038

IS - 4

ER -