Complete distruption posterior arch, unilateral through ilium

Unilateral complete distruption posterior arch through ilium 

Posterior injury

Anterior injury

Posterior injury
The posterior injury is a complete fracture of the posterior ilium.

This is classified as an AO/OTA 61C1.1 injury.

Anterior injury
Anterior injury is one or more of the following:

  • Symphyseal disruption
  • Pubis (uni/bilateral, ipsi/contralateral)
  • Ramus (uni/bilateral, ipsi/contralateral)

61-C1.2 Unilateral complete disruption posterior arch through SI joint

Posterior injury

Anterior injury

Posterior injury
The posterior injury is a completely unstable injury through the SI joint, either:

  • Transiliac fracture dislocation (crescent fracture) with complete S-I displacement)
  • Pure SI dislocation

This is classified as an AO/OTA 61C1.2 injury.

Anterior injury
Anterior injury is one or more of the following:

  • Symphyseal disruption
  • Pubis (uni/bilateral, ipsi/contralateral)
  • Ramus (uni/bilateral, ipsi/contralateral)

Unilateral complete disruption posterior arch through Sacrum 

Posterior injury

Anterior injury

Posterior injury
The posterior injury is a completely unstable vertical fracture through the sacrum.

This is classified as an AO/OTA 61C1.3 injury.

Anterior injury
Anterior injury is one or more of the following:

  • Symphyseal disruption
  • Pubis (uni/bilateral, ipsi/contralateral)
  • Ramus (uni/bilateral, ipsi/contralateral)

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v1.0 2015-12-10