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 disc stresses at the fixation segment in four implanted models. The maximum disc stress was found for the TT-TT group, followed by the CBT-CBT, TT-CBT, and CBT-TT groups.</div>

Journal of Healthcare Engineering

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Figure 7

Figure 7: 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 7 | Biomechanical Investigation of the Posterior Pedicle Screw Fixation System at Level L4-L5 Lumbar Segment with Traditional and Cortical Trajectories: A Finite Element Study 