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Related Experiment Videos

The falling anterior labrum

M E Pierce1, B Ashman

  • 1Department of Radiology, Woden Valley Hospital, Canberra, Australia.

Australasian Radiology
|February 1, 1994
PubMed
Summary

A falling anterior glenoid labrum, often missed on standard imaging, can be detected using prone double contrast computed tomographic arthrography (DCCTA). This technique reveals tears previously hidden on supine views.

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Area of Science:

  • Orthopedics
  • Radiology
  • Sports Medicine

Background:

  • The anterior glenoid labrum is crucial for shoulder joint stability.
  • Diagnosing labral tears can be challenging with conventional imaging techniques.

Observation:

  • Two cases of anterior glenoid labrum tears were evaluated.
  • Supine double contrast computed tomographic arthrography (DCCTA) initially showed a normal anterior labrum.
  • Prone DCCTA demonstrated the anterior labrum detaching from the glenoid.

Findings:

  • Prone DCCTA successfully identified labral tears that were occult on supine DCCTA.
  • The 'falling' appearance of the anterior labrum on prone imaging is a key indicator of a tear.

Implications:

  • Prone DCCTA may improve the diagnostic accuracy for anterior glenoid labrum tears.
  • This imaging approach could aid in timely and appropriate treatment of shoulder injuries.
  • Consideration of prone imaging may be beneficial in cases with suspected but unconfirmed labral pathology.

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