Hosting 728 files, 2951 images, and 4 contributors.

Random Case

Joseph Junewick, MD FACR
over 7 years ago
Enter A Workflow
Standard2   Academic2

Please choose a workflow. A standard workflow allows you to browse the repository with full case detail; the academic workflow allows you to browse the repository with limited case detail revealed. Double click on the images to launch image viewer.

ARSt Case Repository

Facet Subluxation

Case Detail

Anatomy: Brain-Spine
Joseph Junewick, MD FACR
Diagnostic Category: Trauma
Created: over 11 years ago
Updated: over 10 years ago
Tags: PEDS
Modality/Study Types: CR MR
Adobe32 PDF Imagej32 ImageJA


14 year old female unrestrained ejected passenger involved in motor vehicle accident.

Case Images


Facet Subluxation

Clinical Notes

Scapulohumeral dissociation with brachial plexopathy (tearing of 3 trunks) and intimal injury of left subclavian artery.


CT – Left greater than right C6 facet subluxation; no fracture.
MR – Herniated disc with ligamentous disruption and paraspinous edema.


Bilateral interfacetal subluxation/dislocation involves the facetal and apophyseal joints related to hyperflexion. All levels between C2 and C7 can be involved. Posterior longitudinal, ligamentum flavum and interspinous ligament disruption is often present. The superior vertebra is displaced anteriorly; the superior articular masses come to rest in the foramina with facetal dislocation. Impaction fractures are common but of little significance.


Harris JH and Mirvis SE. The Radiology of Acute Cervical Spine Trauma, 3rd Ed. 1996.

Corporate Office: 616.363.7272, 3264 North Evergreen Drive, Grand Rapids, MI 49525

Spectrum Health Helen Devos Childrens Hospital GE HealthCare