Effects of the Insertion Type and Depth on the Pedicle Screw Pullout Strength: A Finite Element Study

<div>von Mises stress distribution in normal pedicle subcortical bone for the last loading step. Results were computed for the two insertion types of N1 (left) and N3 (right) using large deformation formulation.</div>

Applied Bionics and Biomechanics

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Figure 5

Figure 5: Effects of the Insertion Type and Depth on the Pedicle Screw Pullout Strength: A Finite Element Study 