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- W3048106714 abstract "To compare the construct stability of long-segmental dorsal stabilization in unstable midthoracic osteoporotic fracture situation with complete pedicle screw cement augmentation (ComPSCA) versus restricted pedicle screw cement augmentation (ResPSCA) of the most cranial and caudal pedicle screws. Twelve fresh frozen human cadaveric specimens (Th 4–Th 10) aged 65 years and older were tested in a biomechanical cadaver study. All specimens received a dual-energy X-ray absorption scan and computed tomography scan before testing. Standardized long segmental stabilization was performed. All specimens were matched into pairs. These pairs were randomized into the groups with ComPSCA and ResPSCA. An unstable Th7 fracture was simulated. The maximum load was tested with 6 mm/min until failure or 20 mm had been reached. After testing, a computed tomography scan was performed. The mean age of the specimens was 87.8 years (range 74–101 years). The mean t score was –3.6 (range –1.2 to –5.3). The mean maximum force in the ResPSCA group was 1600 N (range 1119–1880 N) and 1941 N (1183–3761 N) in the ComPSCA group. No statistically significant differences between both study groups (P = 1.0) could be seen. No signs of screw loosening were visible. No statistically significant differences in the maximum loads could be seen. No screw loosening of the non-cemented screws was visible. Thus, the construct stability of long segmental posterior stabilization of an unstable midthoracic fracture using ResPSCA seems to be comparable with ComPSCA under axial compression." @default.
- W3048106714 created "2020-08-13" @default.
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- W3048106714 date "2020-11-01" @default.
- W3048106714 modified "2023-09-26" @default.
- W3048106714 title "Comparison of Long Segmental Dorsal Stabilization with Complete Versus Restricted Pedicle Screw Cement Augmentation in Unstable Osteoporotic Midthoracic Vertebral Body Fractures: A Biomechanical Study" @default.
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- W3048106714 doi "https://doi.org/10.1016/j.wneu.2020.08.002" @default.
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