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Biomechanical evaluation of combined short segment fixation and augmentation of incomplete osteoporotic burst fractures

Background: Treating traumatic fractures in osteoporosis is challenging. Multiple clinical treatment options are found in literature. Augmentation techniques are promising to reduce treatment-related morbidity. In recent years, there have been an increasing number of reports about extended indication for augmentation techniques. However, biomechanical evaluations of these techniques are limited. Methods: Nine thoracolumbar osteoporotic spinal samples (4 FSU) were harvested from postmortem donors and immediately frozen. Biomechanical testing was performed by a robotic-based spine tester. Standardized incomplete burst fractures were created by a combination of osteotomy-like weakening and high velocity compression using a hydraulic material testing apparatus. Biomechanical measurements were performed on specimens in the following conditions: 1) intact, 2) fractured, 3) bisegmental instrumented, 4) bisegmental instrumented with vertebroplasty (hybrid augmentation, HA) and 5) stand-alone vertebroplasty (VP). The range of motion (RoM), neutral zone (NZ), elastic zone (EZ) and stiffness parameters were determined. Statistical evaluation was performed using Wilcoxon signed-rank test for paired samples (p = 0.05). Results: Significant increases in RoM and in the NZ and EZ (p 

Titel: Biomechanical evaluation of combined short segment fixation and augmentation of incomplete osteoporotic burst fractures
Verfasser: Hartensuer, René GND
Gehweiler, Dominic Andreas GND
Schulze, Martin
Matuszewski, Lars GND
Raschke, Michael J.
Organisation: FB 05: Medizinische Fakultät
Dokumenttyp: Artikel
Medientyp: Text
Erscheinungsdatum: 21.12.2013
Publikation in MIAMI: 26.02.2014
Datum der letzten Änderung: 27.07.2015
Quelle: BMC Musculoskeletal Disorders 14 (2013) 360
Schlagwörter: Biomechanics; Osteoporosis; Trauma; Vertebroplasty; Instrumentation; Burst fracture; Spine
Fachgebiete: Medizin und Gesundheit
Lizenz: CC BY 2.0
Sprache: Englisch
Anmerkungen: Finanziert durch den Open-Access-Publikationsfonds 2013/2014 der Deutschen Forschungsgemeinschaft (DFG) und der Westfälischen Wilhelms-Universität Münster (WWU Münster).
Format: PDF-Dokument
URN: urn:nbn:de:hbz:6-74309586630
Permalink: https://nbn-resolving.org/urn:nbn:de:hbz:6-74309586630
DOI: 10.1186/1471-2474-14-360
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