What is the prevalence of pes anserine bursitis in the US?

Updated: May 08, 2018
  • Author: P Mark Glencross, MD, MPH, FACOEM, FAAPMR; Chief Editor: Milton J Klein, DO, MBA  more...
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Answer

The exact incidence of pes anserine bursitis is unknown, because studies on its prevalence do not exist. It commonly is not recorded as an individual entity by many physicians, who may report the diagnosis simply as anterior knee pain or patellofemoral syndrome. This condition is recognized as occurring in a large number of patients who present to a physician’s office with anterior knee pain.

In a review of 509 magnetic resonance imaging (MRI) scans of symptomatic adult knees suspected of having an internal derangement, evidence of pes anserine bursitis was evident in 2.5%. [16]

Reports suggest that pes anserinus bursitis is far more common in overweight females, owing to the different angulation of the female knee, which puts more pressure on the area where the pes anserinus inserts. [17, 18]

In addition, pes anserinus bursitis is commonly associated with, occurring in 24-34% of patients with type 2 diabetes who report knee pain. [11, 19] A descriptive study of 94 patients with non–insulin-dependent diabetes mellitus identified pes anserine bursitis in 34 subjects, of whom 91% were women and 9% men. [11] Among affected women with diabetes, 62% had the disease bilaterally. None of the control subjects had bursitis without diabetes. Pes anserine bursitis is associated with obesity, and on average, patients with diabetes in this study had greater body mass than the control subjects did. [11] However, the investigators noted that body mass alone did not explain the higher incidence of bursitis among individuals with diabetes.


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