Double anterior cruciate ligament sign
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View Joachim Feger's current disclosuresAt the time the article was last revised Joachim Feger had no recorded disclosures.
View Joachim Feger's current disclosures- Double ACL sign
- Double anterior cruciate ligament (ACL) sign
The double anterior cruciate ligament (ACL) sign describes a curvilinear, low signal intensity bandlike structure paralleling the anterior cruciate ligament 1-3 and is of rare occurrence 1.
It can be seen in bucket-handle meniscal tears from either the medial or lateral meniscus 1-3. Depending on which one of the menisci is involved, the displaced meniscal fragment is entrapped either anterior or posterior to the anterior cruciate ligament.
Correspondingly, the meniscal fragment may be seen in an anterior and superior position to the anterior cruciate ligament in case of a bucket handle tear of the medial meniscus 3 and a posterior and inferior position in case of a bucket handle tear of the lateral meniscus 1,2.
See also
References
- 1. Takayama K, Matsushita T, Matsumoto T, Kubo S, Kurosaka M, Kuroda R. The Double ACL Sign: An Unusual Bucket-Handle Tear of Medial Meniscus. Knee Surg Sports Traumatol Arthrosc. 2011;19(8):1343-6. doi:10.1007/s00167-011-1441-0 - Pubmed
- 2. Bui-Mansfield L & DeWitt R. Magnetic Resonance Imaging Appearance of a Double Anterior Cruciate Ligament Associated With a Displaced Tear of the Lateral Meniscus. Journal of Computer Assisted Tomography. 2006;30(2):327-32. doi:10.1097/00004728-200603000-00032 - Pubmed
- 3. Takayama K, Matsushita T, Matsumoto T, Kubo S, Kurosaka M, Kuroda R. The Double ACL Sign: An Unusual Bucket-Handle Tear of Medial Meniscus. Knee Surg Sports Traumatol Arthrosc. 2011;19(8):1343-6. doi:10.1007/s00167-011-1441-0 - Pubmed
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