In vitro 3D-kinematics of the upper cervical spine: helical axis and simulation for axial rotation and flexion extension

2009 ◽  
Vol 32 (2) ◽  
pp. 141-151 ◽  
Author(s):  
Pierre-Michel Dugailly ◽  
Stéphane Sobczak ◽  
Victor Sholukha ◽  
Serge Van Sint Jan ◽  
Patrick Salvia ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Axial Rotation ◽  
Helical Axis ◽  
Upper Cervical Spine ◽  
3D Kinematics ◽  
Flexion Extension ◽  
Upper Cervical

Numerical investigation on the stability of human upper cervical spine (C1–C3)

2021 ◽  
pp. 1-13
Author(s):  
Waseem Ur Rahman ◽  
Wei Jiang ◽  
Guohua Wang ◽  
Zhijun Li
Keyword(s):  
Finite Element ◽  
Cervical Spine ◽  
Axial Rotation ◽  
Upper Cervical Spine ◽  
Fe Model ◽  
Facet Joints ◽  
Flexion Extension ◽  
Upper Cervical ◽  
The Stability

BACKGROUND: The finite element method (FEM) is an efficient and powerful tool for studying human spine biomechanics. OBJECTIVE: In this study, a detailed asymmetric three-dimensional (3D) finite element (FE) model of the upper cervical spine was developed from the computed tomography (CT) scan data to analyze the effect of ligaments and facet joints on the stability of the upper cervical spine. METHODS: A 3D FE model was validated against data obtained from previously published works, which were performed in vitro and FE analysis of vertebrae under three types of loads, i.e. flexion/extension, axial rotation, and lateral bending. RESULTS: The results show that the range of motion of segment C1–C2 is more flexible than that of segment C2–C3. Moreover, the results from the FE model were used to compute stresses on the ligaments and facet joints of the upper cervical spine during physiological moments. CONCLUSION: The anterior longitudinal ligaments (ALL) and interspinous ligaments (ISL) are found to be the most active ligaments, and the maximum stress distribution is appear on the vertebra C3 superior facet surface under both extension and flexion moments.

Range of Motion of the Upper Cervical Spine: flexion, extension, lateral bending, and axial rotation

2020 ◽  
Vol 8 ◽  
Author(s):  
Ana I. Lorente ◽  
César Hidalgo García ◽  
Jacobo Rodríguez Sanz ◽  
Mario Maza Frechín ◽  
Albert Pérez Bellmunt
Keyword(s):  
Cervical Spine ◽  
Range Of Motion ◽  
Axial Rotation ◽  
Upper Cervical Spine ◽  
Lateral Bending ◽  
Normal Range ◽  
Range Of Movement ◽  
Flexion Extension ◽  
Upper Cervical ◽  
Life Threatening

Instability is a serious and life-threatening diagnosis in the upper cervical spine (occiput-atlas-axis), and a depth understanding of normal range of movement is required for clinical manual evaluation. To improve this knowledge, ten upper cervical spine specimens have been tested in flexion, extension, lateral bending, and axial rotation. 

scholarly journals In Vitro Upper Cervical Spine Kinematics: Rotation with Combined Movements and its Variation After Alar Ligament Transection

2021 ◽  
pp. 110872
Author(s):  
Ana I. LORENTE ◽  
César HIDALGO-GARCÍA ◽  
Pablo FANLO-MAZAS ◽  
Jacobo RODRÍGUEZ-SANZ ◽  
Carlos LÓPEZ-de-CELIS ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Upper Cervical Spine ◽  
Alar Ligament ◽  
Spine Kinematics ◽  
Upper Cervical ◽  
Combined Movements

scholarly journals Upper Cervical Spine Stability: Maximum Rotation and the Rotation Stress Test in Clinics

2019 ◽  
Vol 7 ◽  
Author(s):  
Ana I Lorente ◽  
Mario Maza Frechín ◽  
Albert Pérez Bellmunt ◽  
César Hidalgo García
Keyword(s):  
Cervical Spine ◽  
Stress Test ◽  
Craniocervical Junction ◽  
Upper Cervical Spine ◽  
Spine Stability ◽  
Upper Cervical ◽  
Rotation Stress

The rotation stress test is used to evaluate stability of the craniocervical junction by assuming that it gives the maximum rotation. However, a more complex manipulation might show a higher rotation: the rotation with extension and contralateral bending. This was tested in vitro with ten upper cervical spine specimens.

Upper cervical spine modelling:in-vitro3D kinematics and helical axis estimation

2005 ◽  
Vol 8 (sup1) ◽  
pp. 87-88 ◽  
Author(s):  
P. M. Dugailly ◽  
S. Sobczak ◽  
P. Salvia ◽  
V. Sholovkha ◽  
P. Klein ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Helical Axis ◽  
Upper Cervical Spine ◽  
Upper Cervical

Circular Tomosynthesis: Potential in Imaging of Breast and Upper Cervical Spine—Preliminary Phantom and in Vitro Study

Radiology ◽  
2003 ◽  
Vol 228 (2) ◽  
pp. 569-575 ◽  
Author(s):  
Grant M. Stevens ◽  
Robyn L. Birdwell ◽  
Christopher F. Beaulieu ◽  
Debra M. Ikeda ◽  
Norbert J. Pelc
Keyword(s):  
Cervical Spine ◽  
In Vitro Study ◽  
Vitro Study ◽  
Upper Cervical Spine ◽  
Upper Cervical
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