Results 21 to 30 of about 57,299 (228)
Frontiers in Surgery, 2022 ObjectiveThis study aimed to examine the effect of the intermediate pedicle screws and their insertion depth on sagittal balance and functional outcomes of lumbar fracture.MethodsThis study reviewed 1,123 patients with lumbar fractures between January ...
Lei Deng +7 more
doaj +1 more source
, 2022 /0000-0002-8241-8771The pullout performance of various pedicle screws after artificial fusion process was investigated in this study. Normal, cannulated (cemented), novel expandable and normal (cemented) pedicle screws were tested.
Aycan, Mehmet Fatih +3 more
core +1 more source
Placement of Thoracic Pedicle Screws [PDF]
JBJS 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
Brain 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
An approximate model for cancellous bone screw fixation [PDF]
, 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
Journal 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
Autonomous lumbar spine pedicle screw planning using machine learning: A validation study
Journal 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 Effect of Thoracolumbar Pedicle Isthmus on Pedicle Screw Accuracy [PDF]
Global 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
Pullout strength of reinserted pedicle screws using the previous entry point and trajectory
Journal 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
Biomechanical comparison of cervical transfacet pedicle screws versus pedicle screws
Chinese 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