Biomechanical Investigation of the Posterior Pedicle Screw Fixation System at Level L4-L5 Lumbar Segment with Traditional and Cortical Trajectories: A Finite Element Study

<div>Mean values and minimum-maximum ranges of the peak von Mises stress in posterior fixations in four implanted models. The maximum stress was found for the TT-TT group in each condition, followed by the CBT-CBT, CBT-TT, and TT-CBT groups.</div>

Journal of Healthcare Engineering

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Figure 8

Figure 8: Biomechanical Investigation of the Posterior Pedicle Screw Fixation System at Level L4-L5 Lumbar Segment with Traditional and Cortical Trajectories: A Finite Element Study 

Figure 8 | Biomechanical Investigation of the Posterior Pedicle Screw Fixation System at Level L4-L5 Lumbar Segment with Traditional and Cortical Trajectories: A Finite Element Study 