MRI Knee - Coronal and Sagittal PDFS - Meniscus tear
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MRI Knee - Coronal and Sagittal PDFS - Meniscus tear
- These proton-density fat-suppressed (PDFS) images are water sensitive (fluid is bright)
- A high signal line passes obliquely through the medial meniscus posteriorly
- This line represents synovial fluid from the knee joint which has leaked into the torn meniscus
- The line reaches the inferior surface of the meniscus
- These are the features of an undisplaced meniscal tear
MRI Knee - Sagittal PDFS - Displaced meniscus
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MRI Knee - Sagittal PDFS - Displaced meniscus
- Part of a torn meniscus can be displaced into another part of the knee joint
- In this image the anterior part of the meniscus (the anterior horn) is correctly located
- The posterior horn is displaced such that it is located next to the anterior horn
- The correct position of the posterior horn is shown