Table 3.
Morphological characteristics of the Lisfranc ligament
| Length (mm) | Width (mm) | Thickness (mm) | Angle (°) | ||
|---|---|---|---|---|---|
| Type I-a (n: 15) | 6.3 ± 1.1 | 7.9 ± 1.8 | 4.6 ± 0.9 | 96.5 ± 6.5 | |
| Type I-b (n: 4) | 6.6 ± 1.2 | 8.4 ± 1.0 | 4.7 ± 0.9 | 97.2 ± 5.5 | |
| Type II-a (n: 12) | Superior fiber bundle | 6.4 ± 2.5 | 4.7 ± 0.6 | 4.5 ± 1.4 | 93.6 ± 6.6 |
| Inferior fiber bundle | 5.9 ± 1.2 | 5.6 ± 2.0 | 4.7 ± 0.8 | 99.4 ± 6.2 | |
| Average | 6.2 ± 1.9 | ― | 4.6 ± 1.1 | 96.5 ± 6.9 | |
| Total | ― | 10.3 ± 2.0 | ― | ― | |
| Type II-b (n: 3) | Superior fiber bundle | 5.9 ± 1.6 | 3.7 ± 0.5 | 4.2 ± 1.3 | 95.3 ± 9.8 |
| Inferior fiber bundle | 5.0 ± 0.7 | 3.1 ± 0.6 | 2.3 ± 0.3 | 111.9 ± 11.2 | |
| Average | 5.4 ± 1.2 | ― | 3.2 ± 1.4 | 103.6 ± 13.0 | |
| Total | ― | 6.7 ± 0.1 | ― | ― | |
| Type III-a (n: 3) | Superior fiber bundle | 4.2 ± 0.3 | 2.8 ± 0.8 | 2.5 ± 0.7 | 89.1 ± 5.7 |
| Intermediate fiber bundle | 5.4 ± 1.7 | 3.4 ± 1.1 | 3.7 ± 1.1 | 88.3 ± 8.1 | |
| Inferior fiber bundle | 5.7 ± 1.2 | 3.7 ± 0.8 | 4.3 ± 1.1 | 102.4 ± 2.5 | |
| Average | 5.1 ± 1.2 | ― | 3.5 ± 1.2 | 93.3 ± 8.6 | |
| Total | ― | 9.9 ± 1.6 | ― | ― | |
| Type III-b (n: 1) | Superior fiber bundle | 5.6 | 2.1 | 1.6 | 103.7 |
| Intermediate fiber bundle | 5.7 | 3.2 | 0.9 | 98.0 | |
| Inferior fiber bundle | 4.5 | 3.5 | 4.1 | 97.7 | |
| Average | 5.9 ± 1.5 | ― | 4.2 ± 1.3 | 96.9 ± 7.8 | |
| Total | ― | 5.5 ± 2.3 | ― | ― | |
| Type IV (n: 2) | 4.5 ± 0.9 | 17.8 ± 0.7 | 4.2 ± 0.1 | 81.5 ± 3.5 | |
| Total | 5.9 ± 1.5 | 5.9 ± 3.2 | 4.2 ± 1.3 | 96.4 ± 8.2 |