Table.
Summary of Ankle-Complex Motion and End-Range Stiffness Characteristics by Ankle Condition (Mean ± SD)
| Anterior |
Inversion |
|||
| Ankle Condition |
Displacement, mm |
End-Range Stiffness, N/mm |
Rotation, ° Range of Motion |
End-Range Stiffness, N·m/° Range of Motion |
| Intact | 7.63 ± 2.6a | 19.10 ± 4.8 | 17.51 ± 5.6 | 0.2775 ± 0.11 |
| Anterior talofibular ligament sectioned | 10.39 ± 3.1 | 17.34 ± 5.8 | 17.85 ± 5.8 | 0.2816 ± 0.12 |
| Anterior talofibular and calcaneofibular ligaments sectioned | 11.14 ± 2.1 | 19.69 ± 4.9 | 24.79 ± 9.2b | 0.2323 ± 0.09c |
a
Indicates less anterior displacement than the ankles with the anterior talofibular ligament sectioned (P = .006) and anterior talofibular and calcaneofibular ligaments sectioned (P = .007).
b
Indicates greater inversion rotation than the intact ankles (P = .004) and ankles with the anterior talofibular ligament sectioned (P = .008).
c
Indicates lower inversion end-range stiffness than the intact ankles (P = .01) and ankles with the anterior talofibular ligament sectioned (P = .02).