Glass -polyalkenoate cement: An alternate materials for kyphoplasty in osteoporotic vertebral compression fractures – An ex vivo research.
J Mech Behav Biomed Mater. 2018 Mar 21;83:46-51
Authors: Leschinger T, Engel Okay, Brüggemann GP, Dederer V, Neiss WF, Scheyerer MJ, Müller LP, Wegmann Okay
Adjoining vertebral physique fracture is described as a threat after vertebroplasty and kyphoplasty. It might be true that this phenomenon is triggered exactly due to the ceaselessly used polymethylmethacrylate cement (PMMA), which exhibits the next stage of stiffness than bone materials and should in the end result in shifting stress ranges inside the complete backbone. The purpose of the current research was to judge and evaluate the stress distribution within the endplate of human vertebrae after kyphoplasty with PMMA and aluminum-free glass-polyalkenoate cement (gpc). For the current research, eight contemporary frozen human cadaveric vertebral our bodies from the thoracolumbar junction have been used. All vertebrae have been augmented transpedicularly on one aspect with gpc and on the opposite aspect with PMMA. A loading of 600?N, 800?N and 1000?N was utilized. Within the information processing a person area of curiosity (roi) was generated for every vertebra. The next parameters have been decided for every roi: most power [N], most stress [kPa], imply stress [kPa], roi space [cm2]. We discovered considerably larger imply stress values within the areas of the vertebrae augmented with PMMA, in comparison with those after augmentation with gpc (p?=?zero.012) when making use of 1000?N. Within the teams with decrease forces there have been no statistical related variations. The stress distribution exhibits a bonus for gpc. A cloth, which doesn’t create load focus onto the cranial and caudal vertebral floor, might have main benefits regarding the threat of adjoining vertebral fractures. Thus the outcomes of the 1000?N loading protocol counsel gpc being a doable different to abnormal PMMA cement, concerning its affect on stiffness in kyphoplasty. These and different basic elements like incorporation needs to be addressed and elaborated extra detailed in additional research.
PMID: 29677554 [PubMed – as supplied by publisher]