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The feasibility of transpedicular screw fixation of the subaxial cervical spine in the Arab population: a computed tomography-based morphometric study

BACKGROUND: Transpedicular screw fixation of the cervical spine provides excellent biomechanical stability. The feasibility of inserting a 3.5-mm screw in the pedicle requires a minimum pedicle diameter of 4.5 mm. This diameter allows at least 0.5 mm bony bridge medially and laterally in order to av...

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Autores principales: Al-Saeed, Osama, Marwan, Yousef, Kombar, Osama Rabie, Samir, Ahmed, Sheikh, Mehraj
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer International Publishing 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4999373/
https://www.ncbi.nlm.nih.gov/pubmed/26868419
http://dx.doi.org/10.1007/s10195-016-0396-9
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author Al-Saeed, Osama
Marwan, Yousef
Kombar, Osama Rabie
Samir, Ahmed
Sheikh, Mehraj
author_facet Al-Saeed, Osama
Marwan, Yousef
Kombar, Osama Rabie
Samir, Ahmed
Sheikh, Mehraj
author_sort Al-Saeed, Osama
collection PubMed
description BACKGROUND: Transpedicular screw fixation of the cervical spine provides excellent biomechanical stability. The feasibility of inserting a 3.5-mm screw in the pedicle requires a minimum pedicle diameter of 4.5 mm. This diameter allows at least 0.5 mm bony bridge medially and laterally in order to avoid pedicle violation which can result in neurovascular complications. We aim to evaluate the feasibility of this technique in Arab people since no data are available about this population. MATERIALS AND METHODS: This cross-sectional study involved a retrospective review of computed tomography scans of normal cervical spines of 99 Arab adults. Ten morphometric measurements were obtained. Data were analyzed using a p value of ≤0.05 as the cut-off level of statistical significance. RESULTS: Our sample included 63 (63.6 %) males and 36 (36.4 %) females, with a mean age of 35.5 ± 16.5 years. The morphometric parameters of C3–C7 spine pedicles were larger in males than in females. The outer pedicle width (OPW) was <4.5 mm in >25 % of all subjects at C3–C6 vertebrae. Statistically significant differences in the OPW between males and females were noted at C3 (p = 0.032) and C6 (p = 0.004). CONCLUSIONS: Inserting pedicle screws in the subaxial cervical spine is feasible among the majority of Arab people. LEVEL OF EVIDENCE: Level 3.
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spelling pubmed-49993732016-09-12 The feasibility of transpedicular screw fixation of the subaxial cervical spine in the Arab population: a computed tomography-based morphometric study Al-Saeed, Osama Marwan, Yousef Kombar, Osama Rabie Samir, Ahmed Sheikh, Mehraj J Orthop Traumatol Original Article BACKGROUND: Transpedicular screw fixation of the cervical spine provides excellent biomechanical stability. The feasibility of inserting a 3.5-mm screw in the pedicle requires a minimum pedicle diameter of 4.5 mm. This diameter allows at least 0.5 mm bony bridge medially and laterally in order to avoid pedicle violation which can result in neurovascular complications. We aim to evaluate the feasibility of this technique in Arab people since no data are available about this population. MATERIALS AND METHODS: This cross-sectional study involved a retrospective review of computed tomography scans of normal cervical spines of 99 Arab adults. Ten morphometric measurements were obtained. Data were analyzed using a p value of ≤0.05 as the cut-off level of statistical significance. RESULTS: Our sample included 63 (63.6 %) males and 36 (36.4 %) females, with a mean age of 35.5 ± 16.5 years. The morphometric parameters of C3–C7 spine pedicles were larger in males than in females. The outer pedicle width (OPW) was <4.5 mm in >25 % of all subjects at C3–C6 vertebrae. Statistically significant differences in the OPW between males and females were noted at C3 (p = 0.032) and C6 (p = 0.004). CONCLUSIONS: Inserting pedicle screws in the subaxial cervical spine is feasible among the majority of Arab people. LEVEL OF EVIDENCE: Level 3. Springer International Publishing 2016-02-11 2016-09 /pmc/articles/PMC4999373/ /pubmed/26868419 http://dx.doi.org/10.1007/s10195-016-0396-9 Text en © The Author(s) 2016 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Original Article
Al-Saeed, Osama
Marwan, Yousef
Kombar, Osama Rabie
Samir, Ahmed
Sheikh, Mehraj
The feasibility of transpedicular screw fixation of the subaxial cervical spine in the Arab population: a computed tomography-based morphometric study
title The feasibility of transpedicular screw fixation of the subaxial cervical spine in the Arab population: a computed tomography-based morphometric study
title_full The feasibility of transpedicular screw fixation of the subaxial cervical spine in the Arab population: a computed tomography-based morphometric study
title_fullStr The feasibility of transpedicular screw fixation of the subaxial cervical spine in the Arab population: a computed tomography-based morphometric study
title_full_unstemmed The feasibility of transpedicular screw fixation of the subaxial cervical spine in the Arab population: a computed tomography-based morphometric study
title_short The feasibility of transpedicular screw fixation of the subaxial cervical spine in the Arab population: a computed tomography-based morphometric study
title_sort feasibility of transpedicular screw fixation of the subaxial cervical spine in the arab population: a computed tomography-based morphometric study
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4999373/
https://www.ncbi.nlm.nih.gov/pubmed/26868419
http://dx.doi.org/10.1007/s10195-016-0396-9
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