Bilateral facet dislocation

A bilateral facet dislocation is an unstable flexion distraction type of dislocation of the cervical spine, often a result of buckling force. Occasionally, the bilateral facet dislocation has been named a 'doubly-locked' vertebral injury giving the impression of stability. However, due to complete ligamentous disruption, this is, in fact, an unstable injury 1.  

Pathology

Mechanism

It has been thought to result from hyperflexion, however, recent studies suggest a buckling force to be the cause 2.

Radiographic features

  • loss of apposition at facet joint: bilateral facet joints may be perched or locked
  • anterolisthesis can be more than 50%
  • increased interspinous distance
Spinal trauma
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Article information

rID: 35385
Tag: refs, cases, stub
Synonyms or Alternate Spellings:
  • Bilateral facet dislocations
  • Bilateral facetal dislocation

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