Biomechanical Evaluation of Cortical Bone Trajectory Fixation with Traditional Pedicle Screw in the Lumbar Spine: A Finite Element Study

Cortical bone trajectory (CBT) is increasingly used in spinal surgery. Although there are many biomechanical studies, the biomechanical effect of CBT in combination with traditional pedicle screws is not detailed. Therefore, the purpose of this study was to investigate the effects of the traditional...

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Autores principales:	Kuo-Chih Su, Kun-Hui Chen, Chien-Chou Pan, Cheng-Hung Lee
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	cortical bone trajectory traditional pedicle screw biomechanics finite element analysis Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/7da9956c5dea4ac3ae93594bf415c28d
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spelling	oai:doaj.org-article:7da9956c5dea4ac3ae93594bf415c28d2021-11-25T16:32:08ZBiomechanical Evaluation of Cortical Bone Trajectory Fixation with Traditional Pedicle Screw in the Lumbar Spine: A Finite Element Study10.3390/app1122105832076-3417https://doaj.org/article/7da9956c5dea4ac3ae93594bf415c28d2021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/22/10583https://doaj.org/toc/2076-3417Cortical bone trajectory (CBT) is increasingly used in spinal surgery. Although there are many biomechanical studies, the biomechanical effect of CBT in combination with traditional pedicle screws is not detailed. Therefore, the purpose of this study was to investigate the effects of the traditional pedicle screw and CBT screw implantation on the lumbar spine using finite element methods. Based on the combination of the traditional pedicle screw and the CBT system implanted into the lumbar spine, four finite element spinal lumbar models were established. The models were given four different load conditions (flexion, extension, lateral bending, and axial rotation), and the deformation and stress distribution on the finite element model were observed. The results show that there was no significant difference in the structural stability of the lumbar spine model between the traditional pedicle screw system and the CBT system. In addition, CBT may reduce stress on the endplate. Different movements performed by the model may have significant biomechanical effects on the spine and screw system. Clinical spinal surgeons may also consider using the CBT system in revision spinal surgery, which may contribute to smaller wounds.Kuo-Chih SuKun-Hui ChenChien-Chou PanCheng-Hung LeeMDPI AGarticlecortical bone trajectorytraditional pedicle screwbiomechanicsfinite element analysisTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10583, p 10583 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	cortical bone trajectory traditional pedicle screw biomechanics finite element analysis Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	cortical bone trajectory traditional pedicle screw biomechanics finite element analysis Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Kuo-Chih Su Kun-Hui Chen Chien-Chou Pan Cheng-Hung Lee Biomechanical Evaluation of Cortical Bone Trajectory Fixation with Traditional Pedicle Screw in the Lumbar Spine: A Finite Element Study
description	Cortical bone trajectory (CBT) is increasingly used in spinal surgery. Although there are many biomechanical studies, the biomechanical effect of CBT in combination with traditional pedicle screws is not detailed. Therefore, the purpose of this study was to investigate the effects of the traditional pedicle screw and CBT screw implantation on the lumbar spine using finite element methods. Based on the combination of the traditional pedicle screw and the CBT system implanted into the lumbar spine, four finite element spinal lumbar models were established. The models were given four different load conditions (flexion, extension, lateral bending, and axial rotation), and the deformation and stress distribution on the finite element model were observed. The results show that there was no significant difference in the structural stability of the lumbar spine model between the traditional pedicle screw system and the CBT system. In addition, CBT may reduce stress on the endplate. Different movements performed by the model may have significant biomechanical effects on the spine and screw system. Clinical spinal surgeons may also consider using the CBT system in revision spinal surgery, which may contribute to smaller wounds.
format	article
author	Kuo-Chih Su Kun-Hui Chen Chien-Chou Pan Cheng-Hung Lee
author_facet	Kuo-Chih Su Kun-Hui Chen Chien-Chou Pan Cheng-Hung Lee
author_sort	Kuo-Chih Su
title	Biomechanical Evaluation of Cortical Bone Trajectory Fixation with Traditional Pedicle Screw in the Lumbar Spine: A Finite Element Study
title_short	Biomechanical Evaluation of Cortical Bone Trajectory Fixation with Traditional Pedicle Screw in the Lumbar Spine: A Finite Element Study
title_full	Biomechanical Evaluation of Cortical Bone Trajectory Fixation with Traditional Pedicle Screw in the Lumbar Spine: A Finite Element Study
title_fullStr	Biomechanical Evaluation of Cortical Bone Trajectory Fixation with Traditional Pedicle Screw in the Lumbar Spine: A Finite Element Study
title_full_unstemmed	Biomechanical Evaluation of Cortical Bone Trajectory Fixation with Traditional Pedicle Screw in the Lumbar Spine: A Finite Element Study
title_sort	biomechanical evaluation of cortical bone trajectory fixation with traditional pedicle screw in the lumbar spine: a finite element study
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/7da9956c5dea4ac3ae93594bf415c28d
work_keys_str_mv	AT kuochihsu biomechanicalevaluationofcorticalbonetrajectoryfixationwithtraditionalpediclescrewinthelumbarspineafiniteelementstudy AT kunhuichen biomechanicalevaluationofcorticalbonetrajectoryfixationwithtraditionalpediclescrewinthelumbarspineafiniteelementstudy AT chienchoupan biomechanicalevaluationofcorticalbonetrajectoryfixationwithtraditionalpediclescrewinthelumbarspineafiniteelementstudy AT chenghunglee biomechanicalevaluationofcorticalbonetrajectoryfixationwithtraditionalpediclescrewinthelumbarspineafiniteelementstudy
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Biomechanical Evaluation of Cortical Bone Trajectory Fixation with Traditional Pedicle Screw in the Lumbar Spine: A Finite Element Study

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