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Table 9 The percentage change of the maximum Von Mises stress on the intervertebral discs among three surgical models

From: Biomechanical evaluation of three surgical scenarios of posterior lumbar interbody fusion by finite element analysis

   PCT PAIB PCP
Extension L1-L2 -27.92% -26.11% -27.92%
L2-L3 -34.31% -31.34% -34.20%
L3-L4 -27.70% -4.80% -27.60%
L5-S1 -35.70% -5.65% -35.70%
Flexion L1-L2 -3.65% -3.48% -3.60%
L2-L3 -20.79% -19.68% -20.59%
L3-L4 -27.74% -8.34% -27.66%
L5-S1 -41.67% -11.27% -41.41%
Lateral bending L1-L2 -7.89% -6.60% -7.72%
L2-L3 -9.15% -7.76% -9.03%
L3-L4 -17.07% -2.70% -17.28%
L5-S1 -62.97% -62.39% -63.14%
Torsion L1-L2 13.50% 13.45% 13.49%
  L2-L3 6.64% 7.62% 6.67%
  L3-L4 8.18% 15.61% 8.36%
  L5-S1 60.89% 61.58% 62.72%
  1. (Percentage change = (Data of surgical model - Data of intact model)/Data of intact model × 100%.)
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