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Unilateral thoracic facet dislocation

M J Lucas1, E E Berg

  • 1Department of Orthopaedic Surgery, University of South Carolina School of Medicine, Columbia 29203, USA.

Clinical Orthopaedics and Related Research
|February 1, 1997
PubMed
Summary
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Unilateral thoracic facet dislocations are rare injuries, often associated with severe thoracic trauma causing respiratory issues. These cases highlight a unique presentation in the thoracic spine, distinct from typical cervical injuries.

Area of Science:

  • Orthopedic Surgery
  • Trauma Surgery
  • Radiology

Background:

  • Unilateral facet dislocations are typically injuries of the cervical spine.
  • Thoracic spine injuries are less common and often present with different clinical features.

Observation:

  • A case series of 3 unilateral thoracic facet dislocations in 2 adults and 1 child.
  • All patients presented with severe thoracic injuries leading to respiratory compromise.
  • Radiographic findings included <20% anterior vertebral body translation and minor kyphosis on lateral views.
  • Axial CT scans revealed the unilateral empty facet sign.

Findings:

  • The mechanism of injury involves flexion-distraction with rotational forces, disrupting the rib cage.
  • Despite severe concomitant injuries, all patients remained neurologically intact.

Related Experiment Videos

  • No mechanical pain was reported at the final follow-up.

    • Implications:

    • This study expands the understanding of facet dislocations beyond the cervical spine.
    • Highlights the importance of recognizing thoracic facet dislocations in polytrauma patients.
    • Suggests that thoracic facet dislocations may have a favorable neurological outcome if managed appropriately.