What causes pes anserine bursitis?

Updated: May 08, 2018
  • Author: P Mark Glencross, MD, MPH, FACOEM, FAAPMR; Chief Editor: Milton J Klein, DO, MBA  more...
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The main cause of pes anserine bursitis is underlying tight hamstrings, which are believed to place extra pressure on the bursa, causing a friction bursal irritation. [8] In addition, some patients may have bursal irritation due to a direct blow and thus experience a contusion to this area, as well as resultant inflammation.

Pes anserine bursitis is a common finding in patients who have concurrent Osgood-Schlatter syndrome, suprapatellar plical irritation, or other causes of joint irritation that may cause spasm of the hamstrings (eg, medial meniscal tears or underlying medial compartment or patellofemoral arthritis). Further clarification of the conditions predisposing to pes anserine bursitis is needed, including its mechanical causes and specific pathologic variants. The medical literature suggests that this disorder continues to be underrecognized as a cause of medial knee pain. [9]

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