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Case of the Week 607


What is the most likely diagnosis?

  • 54 year-old female with neck pain after fall



Frontal and Lateral Radiographs of Cervical Spine

  1. Hangman's Fracture
  2. Jefferson Fracture
  3. Unilateral Locked Facet
  4. Clay Shoveler's Fracture
  5. Retropharyngeal Abscess

Additional Image - Axial CT of Cervical Spine

 

Additional Images

 

Axial CT of Cervical Spine


Answer:

3. Unilateral Locked Facet

More (Click Discussion Tab)

 

 

Unilateral Locked Facet


Ligamentous Injuries

  • Mechanism is flexion/distraction
    • Injury is to the posterior spinal ligamentous complex
    • Unstable in flexion; stable in extension
    • If unrecognized, can lead to progressive neurologic damage
  • Imaging Findings
  • Widening of the interspinous distance
  • Slight anterior subluxation of one vertebral body on another
  • Widening of the facet joint
  • Usually the posterior aspect
  • Disk space narrower anteriorly than posteriorly

MORE . . .


.

This Week

54 year-old female with neck pain after fall
 
 
Some of the fundamentals of interpreting chest images
 
The top diagnostic imaging diagnoses that all medical students should recognize according to the Alliance of Medical Student Educators in Radiology
 
Recognizing normal and  key abnormal intestinal gas patterns, free air and abdominal calcifications
 
Recognizing the parameters that define a good chest x-ray; avoiding common pitfalls
 
How to recognize the most common arthritides




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LearningRadiology.com
is an award-winning educational website aimed primarily at medical students and radiology residents-in-training, containing  lectures, handouts, images, Cases of the Week, archives of cases, quizzes, flashcards of differential diagnoses and “most commons” lists, primarily in the areas of chest, GI, GU cardiac, bone and neuroradiology.