Authors of section


Rahul Banerjee, Peter Brink, Matej Cimerman, Tim Pohlemann, Matevz Tomazevic

Executive Editor

Peter Trafton

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Intact posterior arch, undisplaced transverse sacral fracture

This is a transverse undisplaced sacral body fracture below S2.

All transverse fractures of the sacrum and coccyx are classified as AO/OTA 61A3 fractures.  For a more detailed classification, please refer to the spine section of the AO Surgery Reference.

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