Results 31 to 40 of about 4,335 (188)

Placement of Thoracic Pedicle Screws [PDF]

open access: yesJBJS Essential Surgical Techniques, 2016
Thoracic pedicle screws have become the spinal anchor of choice because of the superior biomechanics of this technique. It is widely used for the treatment of scoliosis, spinal deformity (such as kyphosis), trauma, tumors, infection, and other pathologies.
David W, Polly   +2 more
openaire   +2 more sources

The Effect of Thoracolumbar Pedicle Isthmus on Pedicle Screw Accuracy [PDF]

open access: yesGlobal Spine Journal, 2019
Study Design: Retrospective analysis. Objectives: Aberrant pedicle screws can cause serious neurovascular complications. We propose that a predominant factor of pedicle screw breach is the vertebral anatomy at a given spinal level.
Kyle Raasck   +6 more
openaire   +2 more sources

An approximate model for cancellous bone screw fixation [PDF]

open access: yes, 2013
This is the author's accepted manuscript. The final published article is available from the link below. Copyright @ 2013 Taylor & Francis.This paper presents a finite element (FE) model to identify parameters that affect the performance of an improved ...
Brown, CJ   +9 more
core   +1 more source

Intraoperative 3D imaging with cone-beam computed tomography leads to revision of pedicle screws in dorsal instrumentation: a retrospective analysis

open access: yesJournal of Orthopaedic Surgery and Research, 2021
Background Correct positioning of pedicle screws can be challenging. Intraoperative imaging may be helpful. The purpose of this study was to evaluate the use of intraoperative 3D imaging with a cone-beam CT.
Felix Zimmermann   +4 more
doaj   +1 more source

Pedicle screw placement in patients with variant atlas pedicle [PDF]

open access: yesJournal of International Medical Research, 2016
Objective To investigate how the anatomy of variant atlas vertebra impacts on the strategy used to place pedicle screws used to treat atlantoaxial instability. Methods The study enrolled patients with cervical instability who had a ...
Zhang, Qiang-Hua   +2 more
openaire   +2 more sources

Biomechanical comparison of cervical transfacet pedicle screws versus pedicle screws

open access: yesChinese Medical Journal, 2008
Transfacet pedicle screws provide another alternative for standard pedicle screw placement for plate fixation in the lumbar spine. However, few studies looking at transfacet pedicle screw fixation in the cervical spine are available. Therefore, cervical transfacet pedicle screw fixation and standard pedicle screw fixation techniques were ...
Guan-Yi, Liu   +6 more
openaire   +2 more sources

Implications of navigation in thoracolumbar pedicle screw placement on screw accuracy and screw diameter/pedicle width ratio

open access: yesBrain and Spine, 2023
There is ample evidence that higher accuracy can be achieved in thoracolumbar pedicle screw placement by using spinal navigation. Still, to date, the evidence regarding the influence of the use of navigation on the screw diameter to pedicle width ratio remains limited.The aim of this study was to investigate the implications of navigation in ...
Eric Mandelka   +5 more
openaire   +3 more sources

Autonomous lumbar spine pedicle screw planning using machine learning: A validation study

open access: yesJournal of Craniovertebral Junction and Spine, 2021
Introduction: Several techniques for pedicle screw placement have been described including freehand techniques, fluoroscopy assisted, computed tomography (CT) guidance, and robotics. Image-guided surgery offers the potential to combine the benefits of CT
Kris B Siemionow   +4 more
doaj   +1 more source

The pullout performance of pedicle screws [PDF]

open access: yes, 2015
This brief book systematically discusses all subjects that affect the pullout strength of pedicle screws. These screws are used in spinal surgeries to stabilize the spine.
Başgül, C.   +2 more
core   +1 more source

Pullout strength of reinserted pedicle screws using the previous entry point and trajectory

open access: yesJournal of Orthopaedic Surgery and Research, 2019
Purpose This study compared the biomechanics of reinserted pedicle screws using the previous entry point and trajectory with those of correctly inserted pedicle screws.
Xuanwu Huang   +5 more
doaj   +1 more source

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