Results 41 to 50 of about 128,782 (181)
Interdisciplinary Neurosurgery, 2023 Objective: Despite continuous advancements, posterior thoracolumbar fusion with pedicle screw systems (PSS) has failed to reduce the rate of reoperation over recent decades.
Yasser Abdalla, Shefqet Hajdari
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Technical Note: Pedicle Cement Augmentation with Proximal Screw Toggle and Loosening [PDF]
Orthopaedic Surgery, 2019 BackgroundCement augmentation is a technique used to increase the stability and purchase of pedicle screws in poor quality bone. Various methods can be applied for cement delivery, such as cement injection before screw placement and the use of fenestrated screws.
Wen Jie Choy +3 more
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Bilateral dual iliac screws in spinal deformity correction surgery
Journal of Orthopaedic Surgery and Research, 2018 Background Surgery for adult spinal deformity requires optimal patient-specific spino-pelvic-lower extremity alignment. Distal fixation in thoracolumbar spinal deformity surgery is crucial when arthrodesis to the sacrum is indicated.
Shigeto Ebata +3 more
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Journal of Korean Neurosurgical Society, 2011 We report a case of pedicle screw loosening treated by modified transpedicular screw augmentation technique using polymethylmethacrylate (PMMA), which used the anchoring effect of hardened PMMA. A 56-year-old man who had an L3/4/5 fusion operation 3 years ago complained of continuous low back pain after this operation.
Suk-Hyung, Kang +3 more
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The Risk Factors of Pedicle Screws Loosening after Spinal Instrumentations [PDF]
Global Spine Journal, 2015 Introduction Implant instability has a relatively low rate of incidence, however revision interventions in those cases are expensive, difficult to perform and have a considerable frequency of poor results. Even though various novel technologies are available, this problem is not resolved yet and it is essential ...
Andrey Bokov +3 more
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Development and validation of a quantitative method to assess pedicle screw loosening in posterior spine instrumentation on plain radiographs. [PDF]
, 2014 PURPOSE Currently, the diagnosis of pedicle screw (PS) loosening is based on a subjectively assessed halo sign, that is, a radiolucent line around the implant wider than 1 mm in plain radiographs.
Dietrich, Daniel J. +9 more
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RISK FACTORS OF PEDICLE FIXATION INSTABILITY AT PATIENTS WITH DEGENERATIVE LUMBAR SPINE PATHOLOGY
Бюллетень сибирской медицины, 2016 Objective. To assess risk factors оf pedicle screw instability after decompression and fusion in patients with degenerative lumbar spine disease.Materials and methods.
A. E. Bokov +4 more
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Journal of Orthopaedic Surgery and Research, 2023 Background Cement-augmentation pedicle screws have been widely used in spinal internal fixation surgery combined with osteoporosis in recent years, which can significantly improve the fixation strength, but compared with conventional methods, whether it ...
Zhoufeng Song +3 more
doaj +1 more source
Interdisciplinary Neurosurgery, 2021 Background: Pedicle screw fixation is the standard method for stabilizing fractures in an ankylosed spine, as seen in diffuse idiopathic skeletal hyperostosis (DISH) or ankylosing spondylitis.
Masato Tanaka +5 more
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Hounsfield units of the vertebral body and pedicle as predictors of pedicle screw loosening after degenerative lumbar spine surgery [PDF]
Neurosurgical Focus, 2020 OBJECTIVE The authors aimed to compare the efficacy of lumbar vertebral body Hounsfield units (HUs) and pedicle HUs at predicting pedicle screw loosening. METHODS The authors retrospectively assessed 143 patients with L3–5 ...
Fei, Xu +6 more
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