Finite Element Study of Biomechanical Changes After Unilateral Hemilamina and Facet Joint Resection of Cervical Spine

Peking University

Status: Unknown

Conditions: Intraspinal Tumor

Treatments: Procedure: Hospitalization

Study type: Observational

Funder types: Other

Identifiers

NCT04957056

M2018028

Details and patient eligibility

About

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

Full description

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

Enrollment: 1 estimated patient

Sex: All

Ages: 18 to 35 years old

Volunteers: No Healthy Volunteers

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

Trial design

1 participants in 1 patient group

Study object

Description:

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

Treatment:

Procedure: Hospitalization