Young and Burgess classification of pelvic ring fractures

The Young and Burgess classification is a modification of the Tile classification 1. It is the recommended 5 and most widely used classification system for pelvic ring fractures.

It takes into account force type, severity, and direction, as well as injury instability.

Anteroposterior compression (APC)

  • APC I: stable
  • APC II: rotationally unstable, vertically stable
    • pubic diastasis >2.5 cm
    • disruption and diastasis of anterior part of sacroiliac joint, with intact posterior sacroiliac joint ligaments
  • APC III: equates to a complete hemipelvis separation (but without vertical displacement); unstable
    • pubic diastasis >2.5 cm
    • disruption-diastasis of both anterior and posterior sacroiliac joint ligaments with dislocation

Lateral compression (LC)

  • LC I: stable
    • oblique fracture of pubic rami
    • ipsilateral anterior compression fracture of sacral ala
  • LC II: rotationally unstable, vertically stable​
    • fracture of pubic rami
    • posterior fracture with dislocation of ipsilateral iliac wing (crescent fracture)
  • LC III: unstable
    • ipsilateral lateral compression (LC)
    • contralateral anteroposterior compression (APC)

Vertical shear (VS)

Unstable, associated visceral injuries

  • Vertical displacement of hemipelvis, pubic and sacroiliac joint fractures


Stability depends on the individual components of this injury

  • Complex fracture, including a combination of anteroposterior compression (APC), lateral compression (LC), and/or vertical shear (VC)
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Article information

rID: 56868
Tag: cases
Synonyms or Alternate Spellings:
  • Young and Burgess classification of pelvic fractures
  • Young-Burgess classification of pelvic ring fractures
  • Young-Burgess classification of pelvic fractures
  • Young and Burgess classification
  • Young-Burgess classification

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Cases and figures

  • Figure 1: pelvic fracture diagrams
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