Finite Element Study of Biomechanical Changes After Unilateral Hemilamina and Facet Joint Resection of Cervical Spine
Studieoversikt
Status
Forhold
Intervensjon / Behandling
Detaljert beskrivelse
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
Registrering (Forventet)
Kontakter og plasseringer
Studiekontakt
- Navn: Zhen-Yu Wang
- Telefonnummer: +86 136 2134 9770
- E-post: wzyu502@163.com
Studiesteder
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Beijing
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Beijing, Beijing, Kina, 100191
- Rekruttering
- Peking University Third Hospital
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Ta kontakt med:
- Zhen-Yu Wang
- Telefonnummer: +86 136 2134 9770
- E-post: wzyu502@163.com
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-
Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Prøvetakingsmetode
Studiepopulasjon
Beskrivelse
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
Studieplan
Hvordan er studiet utformet?
Designdetaljer
Kohorter og intervensjoner
Gruppe / Kohort |
Intervensjon / Behandling |
|---|---|
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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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Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
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Verification of the model
Tidsramme: 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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Samarbeidspartnere og etterforskere
Sponsor
Samarbeidspartnere
Etterforskere
- Studiestol: Zhen-Yu Wang, Peking University Third Hospital
- Studieleder: Qi-Guo Rong, Peking University
Studierekorddatoer
Studer hoveddatoer
Studiestart (Faktiske)
Primær fullføring (Forventet)
Studiet fullført (Forventet)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Faktiske)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- M2018028
Plan for individuelle deltakerdata (IPD)
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