[Retracted] Biomechanical Analysis of Different Internal Fixation Combined with Different Bone Grafting for Unstable Thoracolumbar Fractures in the Elderly

Table 3

Elements and nodes of finite element model of cone implant.

Site	Element type	Element number	Node number
Cortical bone	Three-dimensional	496,000	57,000
Cancellous bone	Three-dimensional	277,000	41,000
Screw system	Three-dimensional	128,000	30,000
Cage (rectangle)	Three-dimensional	21,000	4,700
Cage (cylindrical)	Three-dimensional	28,000	5,500