Biomechanical finite element analysis of vertebral column resection and posterior unilateral vertebral resection and reconstruction osteotomy

Table 1 Material properties of spine tissues used in the finite element model

The material properties of the finite element model
Component name	Young’s modulus(MPa)	Poisson’s ratio	Cross-section area(mm²)
Cortical bone	12,000	0.3	-
Cancellous bone	100	0.3	-
Cartilage	10	0.4	-
Bony endplate	1000	0.4	-
Nucleus pulposus	1	0.499	-
Annulus fibrosus	450	0.3	-
ALL	20	0.3	63.7
PLL	20	0.3	20
LF	19.5	0.3	40
ISL	11.6	0.3	40
SSL	15	0.3	30
TL	58.7	0.3	3.6
CL	32.9	0.3	60

ALL anterior longitudinal ligament, PLL posterior longitudinal ligament, ISL interspinous ligament, SSL supraspinal ligament, CL capsular ligament, LF ligamantumflavum, TL transverse ligaments

ISSN: 1749-799X