Radiographic anatomical relationship between spinous process and pedicle in thoracolumbar and lumbar spine
Pedicle screws are widely used in spinal surgeries, but it remains technically demanding to place. There are numerous studies on the anatomy of pedicle; however, there is very little insight on the relationship between the pedicle and the spinous process, which is an important part of the spinal pos...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Wolters Kluwer Health
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5457850/ https://www.ncbi.nlm.nih.gov/pubmed/28538370 http://dx.doi.org/10.1097/MD.0000000000006732 |
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author | Cui, Xingang Wang, Guodong |
author_facet | Cui, Xingang Wang, Guodong |
author_sort | Cui, Xingang |
collection | PubMed |
description | Pedicle screws are widely used in spinal surgeries, but it remains technically demanding to place. There are numerous studies on the anatomy of pedicle; however, there is very little insight on the relationship between the pedicle and the spinous process, which is an important part of the spinal posterior column. The aim of the study was to investigate the radiographic anatomical relationship between spinous processes and pedicles in the thoracolumbar and lumbar spine, in order to reveal a novel entrance point for pedicle screw insertion. Sixty candidates were enrolled in this study; cases were excluded with degenerative disorders and other disorders as osteoporosis, deformity, and tumor. Radiographs and computer tomography scans between T10 and L5 were obtained on each case. The distance was measured that between the superior margin of spinous process root and the superior border, the inferior border and the axis of pedicle. In laboratory, 5 fresh cadavers were used to imitate the pedicle screw insertion. The basic reference point was supposed as the intersection between the horizontal line of superior margin of spinous process root and the central vertical line of the superior facet. For T10 to T12, the pedicle axis was 5 mm beyond the reference point. For L1 to L4, the pedicle axis was at the reference point. At L5, the pedicle axis was 5 mm beneath the reference point. In laboratory, 80 screws were all inserted into pedicles successfully according to the newly referred entrance point. The study reveals the radiographic anatomical relationship between the pedicle and the spinous process. The pedicle axis is around the horizontal line of the superior margin of spinous process root. It provides a new anatomic mark of pedicle screw entrance point. |
format | Online Article Text |
id | pubmed-5457850 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Wolters Kluwer Health |
record_format | MEDLINE/PubMed |
spelling | pubmed-54578502017-06-09 Radiographic anatomical relationship between spinous process and pedicle in thoracolumbar and lumbar spine Cui, Xingang Wang, Guodong Medicine (Baltimore) 6800 Pedicle screws are widely used in spinal surgeries, but it remains technically demanding to place. There are numerous studies on the anatomy of pedicle; however, there is very little insight on the relationship between the pedicle and the spinous process, which is an important part of the spinal posterior column. The aim of the study was to investigate the radiographic anatomical relationship between spinous processes and pedicles in the thoracolumbar and lumbar spine, in order to reveal a novel entrance point for pedicle screw insertion. Sixty candidates were enrolled in this study; cases were excluded with degenerative disorders and other disorders as osteoporosis, deformity, and tumor. Radiographs and computer tomography scans between T10 and L5 were obtained on each case. The distance was measured that between the superior margin of spinous process root and the superior border, the inferior border and the axis of pedicle. In laboratory, 5 fresh cadavers were used to imitate the pedicle screw insertion. The basic reference point was supposed as the intersection between the horizontal line of superior margin of spinous process root and the central vertical line of the superior facet. For T10 to T12, the pedicle axis was 5 mm beyond the reference point. For L1 to L4, the pedicle axis was at the reference point. At L5, the pedicle axis was 5 mm beneath the reference point. In laboratory, 80 screws were all inserted into pedicles successfully according to the newly referred entrance point. The study reveals the radiographic anatomical relationship between the pedicle and the spinous process. The pedicle axis is around the horizontal line of the superior margin of spinous process root. It provides a new anatomic mark of pedicle screw entrance point. Wolters Kluwer Health 2017-05-26 /pmc/articles/PMC5457850/ /pubmed/28538370 http://dx.doi.org/10.1097/MD.0000000000006732 Text en Copyright © 2017 the Author(s). Published by Wolters Kluwer Health, Inc. http://creativecommons.org/licenses/by/4.0 This is an open access article distributed under the Creative Commons Attribution License 4.0 (CCBY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. http://creativecommons.org/licenses/by/4.0 |
spellingShingle | 6800 Cui, Xingang Wang, Guodong Radiographic anatomical relationship between spinous process and pedicle in thoracolumbar and lumbar spine |
title | Radiographic anatomical relationship between spinous process and pedicle in thoracolumbar and lumbar spine |
title_full | Radiographic anatomical relationship between spinous process and pedicle in thoracolumbar and lumbar spine |
title_fullStr | Radiographic anatomical relationship between spinous process and pedicle in thoracolumbar and lumbar spine |
title_full_unstemmed | Radiographic anatomical relationship between spinous process and pedicle in thoracolumbar and lumbar spine |
title_short | Radiographic anatomical relationship between spinous process and pedicle in thoracolumbar and lumbar spine |
title_sort | radiographic anatomical relationship between spinous process and pedicle in thoracolumbar and lumbar spine |
topic | 6800 |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5457850/ https://www.ncbi.nlm.nih.gov/pubmed/28538370 http://dx.doi.org/10.1097/MD.0000000000006732 |
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