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Table 3 Material properties of different parts of the internal fixation system

From: Finite analysis of stability between modified articular fusion technique, posterior lumbar interbody fusion and posteriorlateral lumbar fusion

Internal Fixation System

Elastic Modulus(MPa)

Poisson’s ratio

Legacy Pedicle Screw

110,000

0.3

Legacy Connecting Rod

110,000

0.3

Johnson-johnson Cage(PEEK)

3600

0.3