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Fig. 5 | BMC Musculoskeletal Disorders

Fig. 5

From: Effects of resting modes on human lumbar spines with different levels of degenerated intervertebral discs: a finite element investigation

Fig. 5

Comparison of the changes of the axial effective stress in the center of the nucleus subjected to different load cases for all models. Axial effective stress is the axial pressure sustained by the solid phase in the poroelastic model. Significant relationships were found between axial effective stress and intervertebral disc degeneration. The mechanical properties of disc could be better restored by the less axial effective stress in the center of the nucleus. a Grade 0, b Grade 1, c Grade 2, d Grade 3

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