Type A: Stable fracture

A1: Fractures of the pelvis not involving the pelvic ring

A2: Minimally displaced fractures of the pelvic ring

Type B: Rotationally unstable, vertically stable fractures

B1: Anteroposterior compression fractures (open book)

B2: Lateral compression injuries (ipsilateral)

B3: Lateral compression injuries (contralateral)

Type C: Rotationally and vertically unstable fractures

C1: Rotationally and vertically unstable

C2: Bilateral

C3: Associated with an acetabular fracture


Provide an explanation for key principles and pertinent aspects of the classification


Insert figures illustrating the classification


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