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Table 1 Materials properties of implants used in the current FE models*

From: Biomechanical comparison of unilateral and bilateral pedicle screws fixation for transforaminal lumbar interbody fusion after decompressive surgery -- a finite element analysis

Materials Young’s modulus (Mpa) Poisson’ ratio
Stryker O.I.C. cage 3600 0.3
(PEEK)
Stryker Moon-shaped cage 3600 0.3
(PEEK)
Pedicle screws 110000 0.3
(Titanium alloy)
Translaminar facet screw 110000 0.3
(Titanium alloy)
  1. *Material properties of the lumbar spine had been presented in previous students [26, 33].