Long Fiber Type Carbon Fiber Reinforced Plastic Pedicle Screws Exhibit High Strength, Comparable to Titanium-Alloy Screws, and Are Resistant to Loosening [PDF]
NeurospineObjective To develop a pedicle screw for posterior spinal fixation using this long fiber carbon fiber reinforced plastic (CFRP) technology and evaluate its strength and radiolucency compared with titanium (Ti)-alloy screws.
Kohei Morita +6 more
doaj +3 more sources
Computed tomography-derived Hounsfield unit mapping for pedicle screw planning in degenerative lumbar disease: a narrative review [PDF]
Asian Spine JournalPedicle screw loosening is a common and clinically significant complication of instrumented lumbar fusion and is reported in 15%–30% of screws in osteoporotic patients.
Shabir Ahmed Dhar +6 more
doaj +2 more sources
Frontiers in Bioengineering and BiotechnologyScrew loosening is a widely reported issue after spinal screw fixation and triggers several complications. Biomechanical deterioration initially causes screw loosening.
Zhi-Peng Xi, Jing-Chi Li
exaly +3 more sources
IEEE Open Journal of Engineering in Medicine and BiologyIntroduction: Pedicle screw loosening is a major problem in spine surgery. Computed tomography (CT) is the gold standard to diagnose screw loosening. Disadvantages of CT include low sensitivity and specificity for the detection of loosened screws as well
Ramon Rohner +5 more
doaj +2 more sources
The impact of pedicle screw transitional segment and thread distribution on postoperative rod-screw system failure: insights from clinical research and mechanical testing [PDF]
Bone & Joint ResearchAims: This study aimed to evaluate the differences in postoperative internal fixation system failure between two distinct pedicle screw designs, and to examine how variations in the transitional segment and thread distribution of these screws influence ...
Wen Peng +10 more
doaj +2 more sources
Computed Tomography-Based Prediction of Lumbar Pedicle Screw Loosening. [PDF]
Biomed Res Int, 2023 Objective. Pedicle screw loosening is one of the main complications after pedicle screw fixation. However, there are few reliable measures for prediction of screw loosening. The current study was carried out to find an effective method to use preoperative CT scanning as a predictor of screw loosening in the elderly patients and provide guidance for ...
Shu L +6 more
europepmc +3 more sources
Incidence, Risk, and Outcome of Pedicle Screw Loosening in Degenerative Lumbar Scoliosis Patients Undergoing Long-Segment Fusion [PDF]
Global Spine Journal, 2023 Weishi Li, Zhongqiang Chen
exaly +2 more sources
Journal of Orthopaedic Surgery and Research, 2018 Background Pedicle screws can be augmented with polymethylmethacrylate (PMMA) cement through cannulated and fenestrated pedicle screws to improve screw anchorage. To overcome the drawbacks of PMMA, a modified augmentation technique applying a self-curing
Werner Schmoelz +4 more
doaj +2 more sources
Impact of Screw Insertion Technique on Thoracic Pedicle Screw Anchorage: Biomechanical Comparison of the Modified Slide, Slide, Funnel, and Conventional Techniques [PDF]
JOR SpineBackground Several techniques have been developed to facilitate safe and accurate thoracic pedicle screw placement. However, their impact on screw anchorage has not been systematically evaluated.
Richard A. Lindtner +7 more
doaj +2 more sources
Value of computed tomography Hounsfield units in predicting pedicle screw loosening in the thoracic spine. [PDF]
Sci Rep, 2022 AbstractWe evaluated the feasibility of using the Hounsfield unit (HU) value of the vertebral body to predict screw loosening in the thoracic spine. Consecutive patients who underwent thoracic spinal fusion surgery (from 2014 to 2020) were retrospectively identified.
Lee M, Lee E, Lee JW.
europepmc +4 more sources