MSK MRI

https://youtu.be/eaqz6AnS_sE https://youtube.com/shorts/zwGm1C5oAEI https://youtube.com/shorts/6ygFdDCmIMM https://youtu.be/nKQsItyKAtM MRI Classification of Posterior Medial Meniscal Root Injuries 1. Root Degeneration: Characterized by thickening of the root with intrasubstance hyperintensity that does not reach the articular surface. 2. Root Partial Tear: Involves abnormal signal intensity ext..

https://youtu.be/IpQCx8TqpBc https://youtu.be/nKQsItyKAtM Hemi-bucket-handle tears "A hemi-bucket-handle tear is an undersurface flap tear of the medial meniscus, where meniscal tissue is displaced toward the intercondylar notch. (there is no truncation of the free edge of the medial meniscus; instead, there is an undersurface flap tear with a predominantly horizontal orientation.) Surgeons are ..

https://youtu.be/x4bLWBfxtfs https://youtu.be/nKQsItyKAtM Broken bucket handle meniscal tears This entity refers to a bucket handle tear with an additional rupture of the meniscal fragment. ​​Broken bucket handle tears are often difficult to identify on MRI. However, it is a crucial injury to be aware of and recognize, as the mobility of the ruptured fragments results in significant pain and joi..

https://youtu.be/KI-DwuO7jCY https://youtube.com/shorts/tiexOL6323Q https://youtu.be/nKQsItyKAtM Absent bow tie sign The absent bow tie sign, where the innermost bow tie is not present, can also be seen in a small or pediatric patient and with a radial tear of the body, macerated meniscus, or prior partial meniscectomy Disproportionally small posterior horn The disproportional posterior horn sig..

https://youtu.be/TT-PykByPOQ https://youtu.be/nKQsItyKAtM Absent bow tie sign The absent bow tie sign, where the innermost bow tie is not present, can also be seen in a small or pediatric patient and with a radial tear of the body, macerated meniscus, or prior partial meniscectomy Disproportionally small posterior horn The disproportional posterior horn sign implies the presence of a larger meni..

https://youtu.be/OHke0RUhmi0 https://youtube.com/shorts/mylJNLBdp1Q https://youtu.be/nKQsItyKAtM Double ACL Sign: Occasionally, a bucket-handle tear of the lateral meniscus can present with what's known as the "Double ACL Sign." This sign occurs when the torn fragment is positioned just posterior to the anterior cruciate ligament (ACL). It's important to note that this sign is specific to latera..

https://youtu.be/ozN1U6WaN4s https://youtube.com/shorts/ktPsagkexiE https://youtu.be/nKQsItyKAtM 🧐 Double Posterior Cruciate Ligament (PCL) Sign: Double posterior cruciate ligament (PCL) sign results from meniscal material in the notch, inferior and parallel to the PCL in the same sagittal plane. The intact ACL serves as a barrier, preventing further lateral displacement of the meniscal segment...

https://youtu.be/rwTxz7w45Xs https://youtube.com/shorts/58SqVlZQgAQ https://youtu.be/nKQsItyKAtM 🔍 Understanding Complex Meniscal Tears A combination of radial, horizontal, and longitudinal components. Extends on multiple planes, possibly forming separate flaps. 📸 On MRI: Look for vertical & horizontal patterns, hinting at a fragmented structure. 🚨 'Complex Tear': Indicates extensive distortion ..

https://youtu.be/F0VOgHL4EYg https://youtube.com/shorts/05xM7BZFR_8 https://youtu.be/nKQsItyKAtM 🦵 Recognizing Flap Tears in Meniscus 🦵 When dealing with meniscal flap tears, keep an eye out for a crucial indicator – a change in the slope of the meniscus's superior surface. This change signals a shift in the tear's direction, forming the characteristic flap. 🔍 Changing Slope Sign: Flap tears oft..

https://youtu.be/RvrGR990D0Q https://youtube.com/shorts/ATQAm2YVYSU https://youtu.be/nKQsItyKAtM 🦵 Horizontal Flap Tear vs. Horizontal Tear 🦵 Horizontal Flap Tear In a horizontal flap tear, we observe a meniscal fragment displaced deeper than the Medial Collateral Ligament (MCL). However, in a horizontal cleavage tear, there is no meniscal fragment situated deeper than the MCL. 👁️‍🗨️ Diagnosing ..