Prepatellar bursitis

Prepatellar bursitis is inflammation and fluid collection within the prepatellar bursa. The prepatellar bursa is located between the patella and the overlying subcutaneous tissue.

Main symptoms are anterior knee pain and swelling.

Chronic irritation due to trauma or repetitive kneeling lead to accumulation of fluid within the prepatellar bursa and sometimes haemorrhagic transformation. 

Ultrasound

Hypoechoic fluid sometimes contains debris are noted anterior to the patellar surface.

MRI

Oval shaped fluid filled sac is seen anterior to the patella and displays low T1 and bright T2/STIR signal intensity. When hemorrhage occurs T1 signal increases and T2 GRE signal reduces.

Local injection of non steroid anti-inflammatory drugs and steroids or local application of ice, and finally bursectomy in resistant cases.

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Article information

rID: 43721
Section: Pathology
Tags: knee, bursa, refs, cases
Synonyms or Alternate Spellings:
  • Prepatellar bursal inflammation

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