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.

 

https://www2.aofoundation.org/wps/portal/!ut/p/a0/04_Sj9CPykssy0xPLMnMz0vMAfGjzOKN_A0M3D2DDbz9_UMMDRyDXQ3dw9wMDAx8jfULsh0VAdAsNSU!/?bone=Pelvis&segment=Ring&soloState=fbox&teaserTitle=&contentUrl=srg/61/01-Diagnosis/D100_61_Sacrum.jsp#JumpLabelNr2