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Fig. 16 | Journal of Orthopaedic Surgery and Research

Fig. 16

From: Topping-off surgery vs posterior lumbar interbody fusion for degenerative lumbar disease: a finite element analysis

Fig. 16

Stress distribution of the K-ROD (pedicle screw) in PLIF surgical model for various motions. a, b Maximum von Mises equivalent stress on K-ROD (pedicle screw) in standing posture. c Maximum von Mises equivalent stress on K-ROD (pedicle screw) in anteflexion. d Maximum von Mises equivalent stress on K-ROD (pedicle screw) in extension. e Maximum von Mises equivalent stress on K-ROD (pedicle screw) in right bending. f Maximum von Mises equivalent stress on K-ROD (pedicle screw) in left bending. g Maximum von Mises equivalent stress on K-ROD (pedicle screw) in left rotation. h Maximum von Mises equivalent stress on K-ROD (pedicle screw) in right rotation

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