What is it about?

Inspect the acceptability of the rod system for pedicle screw fixation among the rod systems by comparing range of motion (ROM) at L3L5 segments, stresses and strain on implant, vertebrae and IVD under normal physiological loading conditions.

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Why is it important?

The FRD rod system generates less stress on vertebrae by sharing more load compared to PEEK rods.


The FRD rod system increased ROM by 2, 7.9 and 4.4 times for flexion–extension, lateral bending and axial rotation, respectively, compared to the SS rod system.

Sandipan Roy
SRM Institute of Science and Technology, Kattankulathur, India

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This page is a summary of: A comparison of rigid, semi-rigid and flexible spinal stabilization devices: A finite element study, Proceedings of the Institution of Mechanical Engineers Part H Journal of Engineering in Medicine, October 2019, SAGE Publications,
DOI: 10.1177/0954411919880694.
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