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A bucket-handle tear of the knee is a specific type of meniscal injury characterized by a longitudinal tear of the medial or lateral meniscus, where a displaced inner fragment resembles the appearance of a "bucket handle". [1] This displaced meniscal fragment often remains attached at the anterior and posterior horns but dislocates into the ...
Bucket-handle tear of the lateral meniscus (red). Medial meniscus intact (green). MRI, coronal T2 *-weighted GRE sequence. X-ray images (normally during weightbearing) can be obtained to rule out other conditions or to see if the patient also has osteoarthritis. The menisci themselves cannot be visualised with plain radiographs.
A bucket-handle tear is a specific type of longitudinal meniscal tear in which a fragment of the torn meniscus displaces toward the intercondylar notch of the knee. The displaced fragment often remains attached at its anterior and posterior horns but flips centrally into the notch. [4]
The absent bowtie sign is a radiologic sign indicative of a meniscal tear in the knee joint. On sagittal magnetic resonance (MR) images, the body of the meniscus normally looks like a bow tie, with two distinct segments. The absent bowtie sign is present when there is a lack of two segments seen on consecutive sagittal MR images. [1]
If the tear causes continued pain, swelling, or knee dysfunction, then the tear can be removed or repaired surgically. The unhappy triad is a set of commonly co-occurring knee injuries which includes injury to the medial meniscus.
MRI can also show associated bone bruises on the lateral side of the knee, which one study shows, happen in almost half of medial knee injuries. [ 19 ] Knee MRIs should be avoided for knee pain without mechanical symptoms or effusion, and upon non-successful results from a functional rehabilitation program.
The medial meniscus is a fibrocartilage semicircular band that spans the knee joint medially, located between the medial condyle of the femur and the medial condyle of the tibia. [1] It is also referred to as the internal semilunar fibrocartilage. The medial meniscus has more of a crescent shape while the lateral meniscus is more circular.
Bucket-handle tear of the lateral meniscus (red). Medial meniscus intact (green). MRI, coronal T2 *-weighted GRE sequence. The MRI image in the article. Is it the left knee or the right? Comes.amanuensis 12:20, 10 August 2013 (UTC)