Finite Element Study of Biomechanical Changes After Unilateral Hemilamina and Facet Joint Resection of Cervical Spine
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
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
Type d'étude
Inscription (Anticipé)
Contacts et emplacements
Coordonnées de l'étude
- Nom: Zhen-Yu Wang
- Numéro de téléphone: +86 136 2134 9770
- E-mail: wzyu502@163.com
Lieux d'étude
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Beijing
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Beijing, Beijing, Chine, 100191
- Recrutement
- Peking University Third Hospital
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Contact:
- Zhen-Yu Wang
- Numéro de téléphone: +86 136 2134 9770
- E-mail: wzyu502@163.com
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
Méthode d'échantillonnage
Population étudiée
La description
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
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
Cohortes et interventions
Groupe / Cohorte |
Intervention / Traitement |
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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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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Verification of the model
Délai: 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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Collaborateurs et enquêteurs
Parrainer
Collaborateurs
Les enquêteurs
- Chaise d'étude: Zhen-Yu Wang, Peking University Third Hospital
- Directeur d'études: Qi-Guo Rong, Peking University
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
Achèvement primaire (Anticipé)
Achèvement de l'étude (Anticipé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- M2018028
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
Informations sur les médicaments et les dispositifs, documents d'étude
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