Spilt teacup sign (wrist)
Last revised by Craig Hacking on 13 Mar 2019
Citation, DOI, disclosures and article data
Citation:
Dixon A, Bickle I, Bell D, et al. Spilt teacup sign (wrist). Reference article, Radiopaedia.org (Accessed on 11 Oct 2024) https://doi.org/10.53347/rID-18251
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rID:
18251
Article created:
22 Jun 2012,
Andrew Dixon ◉
Disclosures:
At the time the article was created Andrew Dixon had no recorded disclosures.
View Andrew Dixon's current disclosures
Last revised:
13 Mar 2019,
Craig Hacking ◉
Disclosures:
At the time the article was last revised Craig Hacking had no recorded disclosures.
View Craig Hacking's current disclosures
Revisions:
3 times, by
3 contributors -
see full revision history and disclosures
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The spilt teacup sign describes abnormal volar displacement and tilt of a dislocated lunate on lateral radiographs of the wrist 1,2. The convexity of the lunate is no longer in articulation with the distal radius while the concavity is no longer in articulation with the capitate. It is an important sign to help differentiate lunate dislocation from perilunate dislocation. In the latter, the lunate remains in articulation with the distal radius and therefore does not appear to 'spill' forward.
See also
References
- 1. Kaewlai R, Avery LL, Asrani AV et-al. Multidetector CT of carpal injuries: anatomy, fractures, and fracture-dislocations. Radiographics. 2008;28 (6): 1771-84. doi:10.1148/rg.286085511 - Pubmed citation
- 2. Dähnert W. Radiology Review Manual. Lippincott Williams & Wilkins. (2011) ISBN:1609139437. Read it at Google Books - Find it at Amazon
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