Finite Factor Research to Consider the Biomechanical Efficiency of the Backbone After Augmenting Percutaneous Pedicle Screw Fixation with Kyphoplasty for the Remedy of Burst Fractures.
J Biomech Eng. 2018 Feb 01;:
Authors: Elmasry S, Asfour S, Travascio F
Percutaneous pedicle screw fixation (PPSF) is a minimally invasive surgical procedure (MIS) employed within the remedy of thoracolumbar burst fractures (TBF). Nonetheless, failure and lack of angular correction are frequent limitations brought on by the poor assist of the anterior column of the backbone. Balloon Kyphoplasty (KP) is one other MIS efficiently used within the remedy of compression fractures by augmenting the injured vertebral physique with cement. To beat its limitations as a stand-alone process, it was urged to reinforce PPSF with KP when treating TBF. But, little is thought concerning the biomechanical alteration occurring to the backbone after performing such a process. This examine aimed toward evaluating and evaluating the post-operative biomechanical efficiency of stand-alone PPSF, stand-alone KP, and KP-augmented PPSF procedures. Novel 3D finite component fashions of the thoracolumbar junction mimicking the fractured backbone and the three investigated procedures had been developed and examined below physiological loading situations. Spinal stiffness, stresses on the implanted , and intradiscal stress at adjoining segments had been measured and in contrast. The outcomes confirmed no main variations in all of the measured parameters when stand-alone PPSF or KP-augmented PPSF procedures had been simulated. As well as, it was proven that stand-alone KP could also be an appropriate method within the try of restoring the stiffness of the intact backbone. In conclusion, the outcomes reported on this evaluation counsel that, when treating TBF, the augmentation of PPSF with KP doesn’t enhance the biomechanical efficiency of the backbone within the speedy post-operative time period.
PMID: 29392289 [PubMed – as supplied by publisher]