https://journals.lww.com/clinorthop/citation/1980/09000/pelvic_disruption__assessment_and_classification.4.aspx “Since the pelvis is a ring, disruption of any
portion of the pelvic ring is always associated with disruption in another portion of the ring”
Tile - AO - stability - defined in 1980, refined to AO/OTA framework in 1996, and now have 2018 classification
Pennal - mechanism - The YB classification was developed from the Pennal et al stress studies
One classification system