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Table 2 Element types and element numbers of the element set of FE models

From: Biomechanical evaluation of strategies for adjacent segment disease after lateral lumbar interbody fusion: is the extension of pedicle screws necessary?

Element set

Element type

Total element number

Vertebral cortical bone

Tetrahedron (C3D10)

64,004

Vertebral cancellous bone

Tetrahedron (C3D10)

144,989

Posterior bone

Tetrahedron (C3D10)

135,081

Arthrodial cartilage

Tetrahedron (C3D10)

32,276

Endplate

Tetrahedron (C3D10)

15,568

Nuclear pulposus

Tetrahedron (C3D10)

9086

Annulus fibers/substance

Truss (T3D2)/ Hexahedron (C3D8R)

3918

Ligaments

Truss (T3D2)

38