What is the presentation of Lyme disease-caused septic arthritis?

Updated: Sep 03, 2019
  • Author: John L Brusch, MD, FACP; Chief Editor: Michael Stuart Bronze, MD  more...
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Answer

Months after infection onset, 60% of patients with untreated Lyme disease develop swelling and pain, chiefly affecting the large joints. Usually, Lyme disease affects 1-2 joints at a time, with the knee involved most commonly. The distinguishing pattern is attacks extending from a few weeks to months and separated by periods of complete remission. The rate of recurrence lessens by about 15% per year. A small percentage of individuals develop chronic arthritis (ie, inflammation of a joint lasting ≥ 1 y). This type of relapsing course almost always precedes the chronic stage of Lyme arthritis.


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