ArticleGlobal spine journal2021
Rescue Augmentation: Increased Stability in Augmentation After Initial Loosening of Pedicle Screws.
Article in Global spine journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
5 citing papers in PubMed, 8 citations in OpenAlex.
- The Bony Density of the Pedicle Plays a More Significant Role in the Screw Anchorage Ability Than Other Regions of the Screw Trajectory.Orthopaedic surgery · 2025Article
- An Extended Follow-up of Spinal Instrumentation Rescue with Cement Augmentation.AJNR. American journal of neuroradiology · 2024Article
- When spinal instrumentation revision is not an option: Salvage vertebral augmentation with polymethylmethacrylate for mechanical complications: A systematic review.Brain & spine · 2023Review
- Biomechanical characteristics of 2 different posterior fixation methods of bilateral pedicle screws: A finite element analysis.Medicine · 2022Article
- Improved fixation stability for repairing pedicle screw loosening using a modified cement filling technique in porcine vertebrae.Scientific reports · 2022Article
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
STUDY
designBiomechanical study.
objectivesFailure of pedicle screws is a major problem in spinal surgery not only postoperatively, but also intraoperatively. The aim of this study was to evaluate whether cement augmentation may restore mounting of initially loosened pedicle screws.
methodsA total of 14 osteoporotic or osteopenic human cadaveric vertebral bodies (L2)-according to quantitative computed tomography (QCT)-were instrumented on both sides by conventional pedicle screws and cement augmented on 1 side. In vitro fatigue loading (cranial-caudal sinusoidal, 0.5 Hz) with increasing peak force (100 N + 0.1 N/cycles) was applied until a screw head displacement of 5.4 mm (∼20°) was reached. After loosening, the nonaugmented screw was rescue augmented, and fatigue testing was repeated.
resultsThe fatigue load reached 207.3 N for the nonaugmented screws and was significantly (
conclusionsRescue augmentation leads to similar or higher fatigue strengths compared with those of the initially augmented screws. Therefore, the cement augmentation of initially loosened pedicle screws is a promising option to restore adequate screw stability.
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Registered trials
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