mri patella tendinosis tear radiology education asia

MRI PATELLA: TENDINOSIS AND TEARS

Patella Tendinosis and Tears What to look for on MRI

 

Tendinosis and Tears of the Patella Tendon on MRI  are pretty straightforward and follow the same pattern as tears and tendinosis elsewhere. Here is what to look for on MRI.

 

TENDINOSIS:

  • Increased PD/PDFS signal but not fluid strength.
  • The tendon may increase in size.
  • Look for spread of inflammation into Hoffa’s Fat Pad or oedema in the inferior pole of the patella at the attachment site.

mri knee patella tendinosis tear radiology education asia

Image Above: Patella tendinosis (blue arrow). Tendon enlarged and hyper-intense (but not fluid type signal).

mri patella tendinosis tear radiology education asia

Image Above: Patella tendinosis (yellow arrow). Tendon enlarged and hyper-intense (but not fluid type signal). Reactive oedema in patella at attachment (red arrow) and oedema/inflammatory changes spreading to adjacent Hoffa’s fat (blue arrow).

 

PARTIAL TEARS:

  • A: Increased PD/PDFS signal in tendon with fluid signal strength.
  • B: +/- Inflammation in Hoffa’s Fat pad and oedema in patella at insertion site.mri patella partial tear radiology education asia

    Image Above: Patella tear (red arrow fluid type signal). Reactive oedema in patella at attachment (blue arrow) and oedema/inflammatory changes spreading to adjacent Hoffa’s fat (yellow arrow).

    mri patella tear radiology education asia

    Image Above: Patella tear (blue arrow). Tendon enlarged in keeping with tendinosis.

     

    FULL THICKNESS TEARS:

  • Complete disruption of attachment.
  • Residual tendon retracted and wavy in appearance.

mri patella full thickness completer rupture tear radiology education asia

Image Above: Complete disruption of the proximal attachment of the patella tendon with retraction (blue arrows).

 

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