Ruptured capsular ligaments shown in orange
Classification | Description | Notes |
Joint capsule injury | Widened joint space, with or without subluxation | May be due to axial load, flexion or extension |
Perched facets | Subtotal dislocation | Hyperflexion |
Locked facets | Complete dislocation | Hyperflexion |
Unilateral facet dislocation | Unilateral dislocation | Flexion-rotation |