Figure 5
From: Load-sharing biomechanics of lumbar fixation and fusion with pedicle subtraction osteotomy
Lateral bending (LB) left (a) and right (b): tensile (ε1) and compressive (ε2) strain maps measured in the “Intact” condition and following PSO at L4 and posterior instrumentation with 2 primary-rods (“PSO-2”), with 2 rods and supplementary intervertebral cages (“PSO-2 + Cages”) and with supplementary accessory rods and intervertebral cages (“PSO-4 + Cages”). A picture of the specimen with the correlated areas is reported on the left, indicating the treated level (L4) and the caudal IVD. A representative specimen (#3) is shown here (strain maps for every specimen provided as Supplementary Figures). The DIC strain maps have been obtained using the proprietary software Istra 4D (v4.3.1, Dantec Dynamics, Denmark; URL: https://www.dantecdynamics.com/).
