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.

scholarly journals Subarachnoid Hematoma of the Craniocervical Junction and Upper Cervical Spine After Traumatic Cerebral Contusion: Case Report

2013 ◽  
Vol 53 (9) ◽  
pp. 620-624 ◽  
Author(s):  
Alessandro DI RIENZO ◽  
Maurizio IACOANGELI ◽  
Lorenzo ALVARO ◽  
Roberto COLASANTI ◽  
Elisa MORICONI ◽  
...  
Keyword(s):  
Case Report ◽  
Cervical Spine ◽  
Craniocervical Junction ◽  
Upper Cervical Spine ◽  
Cerebral Contusion ◽  
Upper Cervical

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

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

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.

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

In vitro investigations of internal fixation systems of the upper cervical spine

1992 ◽  
Vol 1 (3) ◽  
pp. 185-190 ◽  
Author(s):  
H. -J. Wilke ◽  
K. Fischer ◽  
A. Kugler ◽  
F. Magerl ◽  
L. Claes ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Internal Fixation ◽  
Upper Cervical Spine ◽  
Upper Cervical

scholarly journals Pseudogout of the Transverse Atlantal Ligament: An Unusual Cause of Cervical Myelopathy

2004 ◽  
Vol 31 (2) ◽  
pp. 273-275 ◽  
Author(s):  
Donald E.G. Griesdale ◽  
Mike Boyd ◽  
Ramesh L. Sahjpaul
Keyword(s):  
Cervical Spine ◽  
Cervical Myelopathy ◽  
Healthy Woman ◽  
Cord Compression ◽  
Calcium Pyrophosphate ◽  
Craniocervical Junction ◽  
Upper Cervical Spine ◽  
Calcium Pyrophosphate Dihydrate ◽  
Upper Cervical ◽  
Pyrophosphate Dihydrate

AbstractBackground:Calcium pyrophosphate dihydrate deposition in the cervical spine is infrequently symptomatic. This is especially true at the craniocervical junction and upper cervical spine.Case Report:A 70-year-old previously healthy woman presented with a progressive cervical myelopathy of four months duration.Results:Examination revealed sensorimotor findings consistent with an upper cervical myelopathy. Radiological studies (plain radiographs, computed tomography, and magnetic resonance imaging) revealed C1-2 instability, and a well-defined extradural 3cm x 1cm retro-odontoid mass causing spinal cord compression. Transoral resection of the mass was performed followed by posterior C1-2 stabilization. Histological examination of the mass confirmed calcium pyrophosphate dihydrate deposition. Follow-up examination showed marked clinical and radiological improvement.Conclusion:Although uncommon, calcium pyrophosphate dihydrate deposition disease should be considered in the differential diagnosis of extradural mass lesions in the region of the odontoid.

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