Results 21 to 30 of about 1,421,860 (165)

DataSheet1_Biomechanical comparison of anterior axis-atlanto-occipital transarticular fixation and anterior atlantoaxial transarticular fixation after odontoidectomy: A finite element analysis.pdf

open access: yes, 2023
Background: Anterior axis-atlanto-occipital transarticular fixation (AAOF) and anterior atlanto-axial transarticular fixation (AAF) are two common anterior screw fixation techniques after odontoidectomy, but the biomechanical discrepancies between them ...
Gai Hang (14727421)   +6 more
core   +1 more source

Pitfalls in the Management of Atlanto-Occipital Dislocation [PDF]

open access: yesAsian Spine Journal, 2015
Atlanto-occipital dislocation (AOD) is rarely seen in clinic because it is characteristically immediately fatal. With recent progress in the pre-hospital care, an increasing number of AOD survivors have been reported. However, because the pathophysiology
Masahiro Aoyama   +5 more
doaj   +1 more source

Establishment and Finite Element Analysis of a Three‐dimensional Dynamic Model of Upper Cervical Spine Instability

open access: yesOrthopaedic Surgery, 2019
Objectives To establish a dynamic three‐dimensional (3D) model of upper cervical spine instability and to analyze its biomechanical characteristics. Methods A 3D geometrical model was established after CT scanning of the upper cervical spine specimen ...
Xiao‐dong Wang   +2 more
doaj   +1 more source

Utility of Anterior Atlantodens Interval Widening on Cervical Spine CT for Assessing Transverse Atlantal Ligament Injury

open access: yesGlobal Spine Journal, 2023
Study Design Retrospective, cross-sectional Objectives To identify trauma patients with confirmed tears of the transverse atlantal ligament on cervical MRI and measure several parameters of atlanto-axial alignment on cervical CT, including the anterior ...
Peter Fiester   +4 more
doaj   +1 more source

Late Subaxial Lesion after Overcorrected Occipitocervical Reconstruction in Patients with Rheumatoid Arthritis [PDF]

open access: yesAsian Spine Journal, 2019
Study Design Retrospective case-control study, level 4. Purpose To clarify the risk factors for late subaxial lesion after occipitocervical (O-C) reconstruction. We examined cases requiring fusion-segment-extended (FE) reconstruction in addition to/after
Akira Iwata   +6 more
doaj   +1 more source

The Relationship between the Occipitocervical Junction and Thoracic Kyphosis in Ankylosing Spondylitis: A Retrospective Cohort Study of 86 Cervical Fractures in Surgically Treated Patients [PDF]

open access: yesAsian Spine Journal, 2019
Study Design Retrospective analysis of prospectively collected data. Purpose To describe the radiological characteristics of the occipitocervical area in patients with ankylosing spondylitis (AS) using the novel measure X-angle and to describe the ...
Nodoka Manabe   +5 more
doaj   +1 more source

Atlanto-Occipital Assimilation with Multiple Accompanying Anomalies

open access: yes, 2022
© 2022 Thieme Medical Publishers, Inc.. All rights reserved.Introduction: fusion of the first cervical vertebra with occipital bone is defined as atlanto-occipital assimilation, which may reduce the dimensions of foramen magnum and leads to consequent ...
ILGAZ, HASAN BARIŞ   +2 more
core   +1 more source

Morphometric Evaluation of Occipital Condyles: Defining Optimal Trajectories and Safe Screw Lengths for Occipital Condyle-Based Occipitocervical Fixation in Indian Population [PDF]

open access: yesAsian Spine Journal, 2018
Study DesignComputed tomographic (CT) morphometric analysis.PurposeTo assess the feasibility and safety of occipital condyle (OC)-based occipitocervical fixation (OCF) in Indians and to define anatomical zones and screw lengths for safe screw placement ...
Aju Bosco   +4 more
doaj   +1 more source

Feasibility of Occipital Condyle Screw Fixation for Craniocervical Instability: Integrating Morphometric Evidence, Anatomical Parameters, and Experience From Surgical Series [PDF]

open access: yesNeurospine
Instability of the craniocervical junction is a potentially life-threatening condition requiring surgical stabilization. Traditional occipital plate fixation carries risks of construct loosening and intracranial complications due to variable skull ...
Mateo Tomas Fariña Nuñez   +19 more
doaj   +1 more source

The influence of contraction duration in muscle energy technique applied to the atlanto-axial joint [PDF]

open access: yes, 2004
Background: Muscle Energy Technique (MET) has been advocated for the treatment of restricted range of motion in the upper neck. There is little evidence, however, to support the effectiveness of MET to increase motion in the cervical spine, or determine ...
Fryer, Gary, Ruszkowski, Wojtek
core   +1 more source

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