Positive PCL line sign
Citation, DOI, disclosures and article data
Citation:
Rezaee A, Knipe H, Positive PCL line sign. Reference article, Radiopaedia.org (Accessed on 09 Mar 2025) https://doi.org/10.53347/rID-38876
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rID:
38876
Article created:
9 Aug 2015,
Amir Rezaee
Disclosures:
At the time the article was created Amir Rezaee had no recorded disclosures.
View Amir Rezaee's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Henry Knipe had no recorded disclosures.
View Henry Knipe's current disclosures
Revisions:
2 times, by
2 contributors -
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Systems:
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Synonyms:
- PCL line sign
- Positive PCL line sign
The positive PCL line sign is an indirect sign of anterior cruciate ligament (ACL) tear based on secondary changes of the posterior cruciate ligament (PCL) on MRI images. A line tangent to the upper border of the PCL should normally intersect the medullary cavity of the distal femur, if it does not, it is suggestive of an ACL tear.
References
- 1. Schweitzer ME, Cervilla V, Kursunoglu-Brahme S et-al. The PCL line: an indirect sign of anterior cruciate ligament injury. Clin Imaging. 1992;16 (1): 43-8. Pubmed citation
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