| Classification | Description | Notes |
| Roy-Camille Type 1 | Simple focal kyphosis of the upper sacral segments | Axial load with flexion |
| Roy-Camille Type 2 | Anterior displacement and kyphosis, with impaction | Axial load with flexion |
| Roy-Camille Type 3 | Posterior displacement and lordosis with override | Axial load with extension |
| AO U Type | Spinopelvic Dissociation | ‘Suicide jumper’ fractures |
| AO H Type | Spinopelvic Dissociation | ‘Suicide jumper’ fractures |
| AO Lambda Type | ||
| AO T Type |
Independent classifications. Roy-Camille addresses the horizontal component, and AO describes combined vertical and horizontal fractures.
References:
Roy-Camille, R., et al. (1985). “Transverse fracture of the upper sacrum. Suicidal jumper’s fracture.” Spine 10(9): 838-845.