Cargando…

The morphological relationship between lumbosacral transitional vertebrae and lumbosacral pedicle asymmetry

INTRODUCTION: The clinical significance of lumbosacral transitional vertebrae (LSTV) has been reported. However, the association between LSTV and lumbosacral pedicle anatomical anomaly has not been investigated. We hypothesized that LSTV might be associated with lumbosacral anatomical anomaly. The p...

Descripción completa

Detalles Bibliográficos
Autores principales: Ono, Teruaki, Tarukado, Kiyoshi, Tono, Osamu, Harimaya, Katsumi, Morishita, Yuichiro, Nakashima, Yasuharu, Doi, Toshio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Japanese Society for Spine Surgery and Related Research 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6698546/
https://www.ncbi.nlm.nih.gov/pubmed/31440651
http://dx.doi.org/10.22603/ssrr.2017-0019
_version_ 1783444564282966016
author Ono, Teruaki
Tarukado, Kiyoshi
Tono, Osamu
Harimaya, Katsumi
Morishita, Yuichiro
Nakashima, Yasuharu
Doi, Toshio
author_facet Ono, Teruaki
Tarukado, Kiyoshi
Tono, Osamu
Harimaya, Katsumi
Morishita, Yuichiro
Nakashima, Yasuharu
Doi, Toshio
author_sort Ono, Teruaki
collection PubMed
description INTRODUCTION: The clinical significance of lumbosacral transitional vertebrae (LSTV) has been reported. However, the association between LSTV and lumbosacral pedicle anatomical anomaly has not been investigated. We hypothesized that LSTV might be associated with lumbosacral anatomical anomaly. The purpose of this study was to examine the morphological association between LSTV and lumbosacral pedicle asymmetry (PA) using computed tomography (CT). METHODS: A retrospective review of CT images of 347 lumbosacral degenerative disease patients was performed. We divided the subjects into two groups: the normal and LSTV groups. LSTV was classified based on Castellvi's classification. PA was defined as a difference of more than 20° between the right and left angles of the pedicle. RESULTS: Seventy out of 347 lumbosacral degenerative disease patients (20.17%) were diagnosed with LSTV. In the normal group, only a 0.54% incidence of PA was seen; however, with respect to the LSTV group, a 9.29% incidence of PA was seen. A significant difference in PA incidence was observed between the groups (p < 0.001). Type IIIa and Type IV in the LSTV group showed a statistically significant PA incidence rate (p = 0.004 and p = 0.039, respectively). CONCLUSIONS: Our study demonstrated that there was a significant difference in the incidence of PA between LSTV subjects and normal subjects. Moreover, the incidence of PA was significantly higher in LSTV subjects with severe anomaly. These results suggested that lumbosacral spine anomaly might have a close relationship with the incidence of PA and lumbosacral nerve root asymmetry. Therefore, morphological evaluation of the pedicle is important for preoperative surgical management, especially in cases using pedicle screws. This information could lower the incidence of pedicle screw malposition when pedicle screws are inserted at the lumbosacral spine.
format Online
Article
Text
id pubmed-6698546
institution National Center for Biotechnology Information
language English
publishDate 2018
publisher The Japanese Society for Spine Surgery and Related Research
record_format MEDLINE/PubMed
spelling pubmed-66985462019-08-22 The morphological relationship between lumbosacral transitional vertebrae and lumbosacral pedicle asymmetry Ono, Teruaki Tarukado, Kiyoshi Tono, Osamu Harimaya, Katsumi Morishita, Yuichiro Nakashima, Yasuharu Doi, Toshio Spine Surg Relat Res Original Article INTRODUCTION: The clinical significance of lumbosacral transitional vertebrae (LSTV) has been reported. However, the association between LSTV and lumbosacral pedicle anatomical anomaly has not been investigated. We hypothesized that LSTV might be associated with lumbosacral anatomical anomaly. The purpose of this study was to examine the morphological association between LSTV and lumbosacral pedicle asymmetry (PA) using computed tomography (CT). METHODS: A retrospective review of CT images of 347 lumbosacral degenerative disease patients was performed. We divided the subjects into two groups: the normal and LSTV groups. LSTV was classified based on Castellvi's classification. PA was defined as a difference of more than 20° between the right and left angles of the pedicle. RESULTS: Seventy out of 347 lumbosacral degenerative disease patients (20.17%) were diagnosed with LSTV. In the normal group, only a 0.54% incidence of PA was seen; however, with respect to the LSTV group, a 9.29% incidence of PA was seen. A significant difference in PA incidence was observed between the groups (p < 0.001). Type IIIa and Type IV in the LSTV group showed a statistically significant PA incidence rate (p = 0.004 and p = 0.039, respectively). CONCLUSIONS: Our study demonstrated that there was a significant difference in the incidence of PA between LSTV subjects and normal subjects. Moreover, the incidence of PA was significantly higher in LSTV subjects with severe anomaly. These results suggested that lumbosacral spine anomaly might have a close relationship with the incidence of PA and lumbosacral nerve root asymmetry. Therefore, morphological evaluation of the pedicle is important for preoperative surgical management, especially in cases using pedicle screws. This information could lower the incidence of pedicle screw malposition when pedicle screws are inserted at the lumbosacral spine. The Japanese Society for Spine Surgery and Related Research 2018-01-27 /pmc/articles/PMC6698546/ /pubmed/31440651 http://dx.doi.org/10.22603/ssrr.2017-0019 Text en Copyright © 2018 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
Ono, Teruaki
Tarukado, Kiyoshi
Tono, Osamu
Harimaya, Katsumi
Morishita, Yuichiro
Nakashima, Yasuharu
Doi, Toshio
The morphological relationship between lumbosacral transitional vertebrae and lumbosacral pedicle asymmetry
title The morphological relationship between lumbosacral transitional vertebrae and lumbosacral pedicle asymmetry
title_full The morphological relationship between lumbosacral transitional vertebrae and lumbosacral pedicle asymmetry
title_fullStr The morphological relationship between lumbosacral transitional vertebrae and lumbosacral pedicle asymmetry
title_full_unstemmed The morphological relationship between lumbosacral transitional vertebrae and lumbosacral pedicle asymmetry
title_short The morphological relationship between lumbosacral transitional vertebrae and lumbosacral pedicle asymmetry
title_sort morphological relationship between lumbosacral transitional vertebrae and lumbosacral pedicle asymmetry
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6698546/
https://www.ncbi.nlm.nih.gov/pubmed/31440651
http://dx.doi.org/10.22603/ssrr.2017-0019
work_keys_str_mv AT onoteruaki themorphologicalrelationshipbetweenlumbosacraltransitionalvertebraeandlumbosacralpedicleasymmetry
AT tarukadokiyoshi themorphologicalrelationshipbetweenlumbosacraltransitionalvertebraeandlumbosacralpedicleasymmetry
AT tonoosamu themorphologicalrelationshipbetweenlumbosacraltransitionalvertebraeandlumbosacralpedicleasymmetry
AT harimayakatsumi themorphologicalrelationshipbetweenlumbosacraltransitionalvertebraeandlumbosacralpedicleasymmetry
AT morishitayuichiro themorphologicalrelationshipbetweenlumbosacraltransitionalvertebraeandlumbosacralpedicleasymmetry
AT nakashimayasuharu themorphologicalrelationshipbetweenlumbosacraltransitionalvertebraeandlumbosacralpedicleasymmetry
AT doitoshio themorphologicalrelationshipbetweenlumbosacraltransitionalvertebraeandlumbosacralpedicleasymmetry
AT onoteruaki morphologicalrelationshipbetweenlumbosacraltransitionalvertebraeandlumbosacralpedicleasymmetry
AT tarukadokiyoshi morphologicalrelationshipbetweenlumbosacraltransitionalvertebraeandlumbosacralpedicleasymmetry
AT tonoosamu morphologicalrelationshipbetweenlumbosacraltransitionalvertebraeandlumbosacralpedicleasymmetry
AT harimayakatsumi morphologicalrelationshipbetweenlumbosacraltransitionalvertebraeandlumbosacralpedicleasymmetry
AT morishitayuichiro morphologicalrelationshipbetweenlumbosacraltransitionalvertebraeandlumbosacralpedicleasymmetry
AT nakashimayasuharu morphologicalrelationshipbetweenlumbosacraltransitionalvertebraeandlumbosacralpedicleasymmetry
AT doitoshio morphologicalrelationshipbetweenlumbosacraltransitionalvertebraeandlumbosacralpedicleasymmetry