Finite Element Study of Biomechanical Changes After Unilateral Hemilamina and Facet Joint Resection of Cervical Spine
Studie Overzicht
Gedetailleerde beschrijving
The finite element method was used to simulate unilateral hemilaminectomy of cervical spine and different degrees of facet joint resection, and the range of motion and the stress changes of ligaments, intervertebral discs and endplates were calculated immediately after the operation.
Finite element method was used to simulate unilateral hemilaminectomy of cervical spine and facet joint resection of different degrees, and the range of motion and the stress changes of ligament, intervertebral disc and endplate were calculated immediately after operation.
Study Design:
This study is a retrospective and general observational study.In this study, a young patient who was hospitalized in the Neurosurgery Department of the Third Hospital of Beijing University of Medicine and had undergone CT examination of cervical vertebra was selected. The patient had no cervical bony deformity, no cervical degeneration, and no history of trauma.
CT imaging data were collected, and a three-dimensional finite element model of C2-T1 segment of human cervical spine was established by finite element software. On the basis of this model, two and three levels of unilateral hemilamina and different degrees of facet joint resection were simulated.The lower end of the T1 vertebral body was fixed as the boundary condition, and three loading modes were adopted, namely, 2.0nm pure torque was applied to the upper surface of the C2 vertebral body along the sagittal plane, coronal plane and axial plane, respectively.The range of motion between vertebral segments was calculated and compared in different lamina surgical models. The tension of ligaments, the pressure of endplates and the pressure of intervertebral discs were obtained by finite element post-processing
Studietype
Inschrijving (Verwacht)
Contacten en locaties
Studiecontact
- Naam: Zhen-Yu Wang
- Telefoonnummer: +86 136 2134 9770
- E-mail: wzyu502@163.com
Studie Locaties
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Beijing
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Beijing, Beijing, China, 100191
- Werving
- Peking University Third Hospital
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Contact:
- Zhen-Yu Wang
- Telefoonnummer: +86 136 2134 9770
- E-mail: wzyu502@163.com
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Bemonsteringsmethode
Studie Bevolking
Beschrijving
Inclusion Criteria:
A young patient hospitalized in the Department of Neurosurgery of the Third Hospital of Beijing University of Medicine underwent CT examination of cervical vertebrae.
Exclusion Criteria:
Cervical bony deformity Cervical degeneration History of trauma
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
Cohorten en interventies
Groep / Cohort |
Interventie / Behandeling |
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Study object
A young patient hospitalized in the Department of Neurosurgery of the Third Hospital of Beijing University of Medicine underwent CT examination of cervical vertebrae.
The patient had no cervical bony deformity, no cervical degeneration, and no history of trauma
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Hospitalization
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Verification of the model
Tijdsspanne: Through study completion, an average of 1 year
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In this study, the pure torque of 2.0Nm was applied to the upper surface of C2 vertebral body along the 1, 2 and 3 coordinates according to the right hand helical rule to generate the corresponding pure torque in the sagittal plane, coronal plane and axial plane, and to simulate the cervical spine flexion and extension, lateral bending and left-right rotation in real life
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Through study completion, an average of 1 year
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Medewerkers en onderzoekers
Sponsor
Medewerkers
Onderzoekers
- Studie stoel: Zhen-Yu Wang, Peking University Third Hospital
- Studie directeur: Qi-Guo Rong, Peking University
Studie record data
Bestudeer belangrijke data
Studie start (Werkelijk)
Primaire voltooiing (Verwacht)
Studie voltooiing (Verwacht)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- M2018028
Plan Individuele Deelnemersgegevens (IPD)
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Informatie over medicijnen en apparaten, studiedocumenten
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