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๐น Why Identifying Displaced Fragments Matters
Displaced meniscal fragments can be easily overlooked during surgery, leading to persistent knee pain, mechanical symptoms, or surgical failure. Early detection is crucial for optimal outcomes.
๐น Clues for Diagnosis: Look for a Blunted Meniscus
- In cases without prior surgery, a blunted lateral meniscus on MRI should raise suspicion.
- Thoroughly examine the intercondylar notch, anterior and posterior recesses, and popliteal hiatus for displaced fragments.
๐น Popliteus Tendon Sheath: A Hidden Space for Tears
- The popliteus tendon sheath can house displaced lateral meniscus fragments, making them challenging to detect on routine MRI.
- Awareness of this anatomical relationship improves diagnostic accuracy.
๐น MRI Features of a Displaced Flap Tear
- Location: Inferior to the lateral joint line
- Orientation: Anterior to the popliteus tendon
- Appearance: Disrupted meniscal contour with displaced fragment signals
๐น Clinical Implications of a Missed Fragment
- Persistent lateral knee pain
- Locking or catching sensations
- Recurrent knee effusion
- Potential failure of meniscal repair
#MeniscusTear, #KneeMRI, #MSKRadiology, #Orthopedics, #SportsMedicine, #KneePain, #MeniscusRepair, #FlapTear, #Arthroscopy, #RadiologyEducation
"Visualizing MSK Radiology: A Practical Guide to Radiology Mastery"
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'โ Knee MRI Mastery > Chap 1. Meniscus' ์นดํ ๊ณ ๋ฆฌ์ ๋ค๋ฅธ ๊ธ
| (Fig 1-B.41) Type 5 Ramp Lesion (0) | 2024.04.07 |
|---|---|
| (Fig 1-E.23) Posterior root tear Of Meniscus Allograft Transplantation (0) | 2024.02.11 |
| (Fig 1-E.22) Expected Findings Of Keyhole (bone block and slot) Technique (0) | 2024.02.11 |
| (Fig 1-E.21) Concomitant MAT and ACLR and Articular cartilage restorative procedure (0) | 2024.02.11 |
| (Fig 1-E.20) Too-small meniscal allograft and failure (0) | 2024.02.11 |