Biomechanical study of three kinds of internal fixation for the treatment of sacroiliac joint disruption using biomechanical test and finite element analysis

Table 2 The properties of materials used in pelvic finite element model

Material	Young’s modulus (MPa)	Poisson’s ratio u	K (N/mm)
Cortical bone (ilium)	17,000	0.3
Cortical bone (sacrum)	6140	0.3
Cancellous bone (ilium)	132	0.2
Cancellous bone (sacrum)	1400	0.3
Symphysis pubis	5	0.45
Sacroiliac posterior long ligament			1000
Sacroiliac posterior short ligament			400
Sacroiliac anterior ligament			700
Sacrotuberous ligament			1500
Sacrospinous ligament			1400

ISSN: 1749-799X