Bilateral facet dislocation
Last revised by Yahya Baba on 1 Nov 2021
Citation, DOI, disclosures and article data
Citation:
Goel A, Baba Y, Elfeky M, et al. Bilateral facet dislocation. Reference article, Radiopaedia.org (Accessed on 28 Mar 2024) https://doi.org/10.53347/rID-35385
Permalink:
rID:
35385
Article created:
4 Apr 2015,
Ayush Goel ◉
Disclosures:
At the time the article was created Ayush Goel had no recorded disclosures.
View Ayush Goel's current disclosures
Last revised:
1 Nov 2021,
Yahya Baba ◉
Disclosures:
At the time the article was last revised Yahya Baba had no recorded disclosures.
View Yahya Baba's current disclosures
Revisions:
12 times, by
9 contributors -
see full revision history and disclosures
Systems:
Synonyms:
- Bilateral facet dislocations
- Bilateral facetal 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%
- if there is a lesser amount of displacement one of the facet joints may be intact (unilateral facet joint dislocation)
- increased interspinous distance
Quiz questions
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References
- 1. The Radiology of Acute Cervical Spine Trauma. 3rd ed. (1996) Radiology. doi:10.1148/radiology.200.1.248
- 2. O'Shaughnessy J, Grenier JM, Stern PJ. A delayed diagnosis of bilateral facet dislocation of the cervical spine: a case report. J Can Chiropr Assoc. 2014;58 (1): 45-51. Free text at pubmed - Pubmed citation
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