Double contour sign (knee)
Last revised by Henry Knipe on 16 Feb 2022
Citation, DOI, disclosures and article data
Citation:
Niknejad M, Knipe H, Rock P, et al. Double contour sign (knee). Reference article, Radiopaedia.org (Accessed on 06 Oct 2024) https://doi.org/10.53347/rID-22118
Permalink:
rID:
22118
Article created:
12 Mar 2013,
Mohammad Taghi Niknejad ◉
Disclosures:
At the time the article was created Mohammad Taghi Niknejad had no recorded disclosures.
View Mohammad Taghi Niknejad's current disclosures
Last revised:
16 Feb 2022,
Henry Knipe ◉
Disclosures:
At the time the article was last revised Henry Knipe had no recorded disclosures.
View Henry Knipe's current disclosures
Revisions:
7 times, by
5 contributors -
see full revision history and disclosures
Systems:
Sections:
Synonyms:
- Double contour sign of trochlear dysplasia
- The double contour sign of trochlear dysplasia
- The double contour sign (trochlear dysplasia)
- Double contour sign (trochlear dysplasia)
The double contour sign is a helpful radiologic sign of trochlear dysplasia and is seen on true lateral knee radiographs as a double line at the anterior aspect of condyles that occurs if the medial femoral condyle is hypoplastic.
References
- 1. Diederichs G, Issever A, Scheffler S. MR Imaging of Patellar Instability: Injury Patterns and Assessment of Risk Factors. Radiographics. 2010;30(4):961-81. doi:10.1148/rg.304095755 - Pubmed
- 2. Dejour H, Walch G, Neyret P, Adeleine P. [Dysplasia of the Femoral Trochlea]. Rev Chir Orthop Reparatrice Appar Mot. 1990;76(1):45-54. - Pubmed
Incoming Links
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