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Table 8 Analysis of the state and influence on the interpretation by densities of the mesh

From: Topping-off surgery vs posterior lumbar interbody fusion for degenerative lumbar disease: a finite element analysis

Mesh

Number of nodes

Number of elements

Approximate computational time (min)

Max model displacement (mm)

Stress on adjacent disc (Mpa)

Low-medium

125970

84676

8

4.3151

1.734

Medium

181156

123871

15

4.0609

1.455

Medium-high

537548

375680

40

3.8904

1.8582

High

942449

675635

180

3.8736

1.8219

Optimization

201654

136934

25

3.9507

1.8162