- Based on pelvic ring stability
- Type A - Completely stable with intact Posterior Arch
- Isolated Iliac Wing or Pubic Rami #’s or Transverse Sacral #
- Minimally associated with bleeding
- Conservative mx
- Type B - Rotational instability (vertically stable)
- B1 - Externally rotated # Unilateral
- External rotationally unstable, vertically stable, posterior arch incomplete disruption
- Open Book
- Anterior lesion (Symphysis, Inf/Sup Pubic Rami) +
- Posterior disruption (Ant or Post SIJ ligaments)
- Pelvic organ injury
- B2 - Internally rotated # Unilateral
- Lateral compression
- Internal rotation instability
- Bladder perf
- Shock
- Pelvic organ injury
- B3 - Bilateral
- Type C - Rotation and vertical instability
- C1 - Unilateral complete disruption of posterior arch
- C2 - Unilateral complete disruption of posterior arch with contralateral rotational instability/incomplete posterior arch disruption (B type #)
- C3 - Bilateral complete disruption of posterior arch with spinopelvic dissociation
