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The material properties of main ligaments in models
| Material of ligament | Stiffness coefficient (N/mm) | Element number | Element type |
|---|---|---|---|
| Anterior sacroiliac ligament | 700 | 20 × 2 | Truss |
| Sacroiliac interosseous ligament | 2800 | 20 × 2 | Truss |
| Long posterior sacroiliac ligament | 1000 | 20 × 2 | Truss |
| Short posterior sacroiliac ligament | 400 | 16 × 2 | Truss |
| Sacrospinous ligament | 1400 | 20 × 2 | Truss |
| Sacrotuberous ligament | 1500 | 15 × 2 | Truss |
| Superior pubic ligaments | 500 | 10 | Truss |
| Arcuate pubic ligaments | 500 | 10 | Truss |
