(Fig 4-B.10) Prepatellar Bursa Compartmentalization

https://youtu.be/AbBehbf5sfI

https://youtu.be/w63GyfUeIyw

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📌Prepatellar Bursitis

 

• Fluid accumulation, synovitis, and bursal wall thickening in superficial bursae
• Causes anterior knee pain and swelling

 

✅  Etiology:

• Repetitive microtrauma (e.g., kneeling)
• Infection
• Gout
• Sarcoid
• CREST syndrome
• Immunocompromise

 

✅ MRI Findings:

• Well-defined, crescentic fluid collection in prepatellar soft tissues
• May show heterogeneous signal (hemorrhage or infection)
• Visible septa representing fibrous layers within bursae

 

✅ Superficial Bursitis:

• Better-defined, focal fluid accumulation
• Presents as an arc over patella, patellar tendon, or tibial tubercle
• May appear unilocular, bilaminar, or trilaminar due to communicating bursae

 

References: 

RadioGraphics 2018;38:2069-2101 

Magn Reson Imaging Clin N Am 2014;22:601-620

Clin Sports Med 2014;33:413-36

 

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#PrepatellaBursitis #AnteriorKneePain #RepetitiveMicrotrauma #BursalFluidAccumulation #MRIFindings #SuperficialBursitis #BursalCommunication #BursalSepta #BursalDistension #KneeImaging