How common is complex regional pain syndrome type 1 (CRPS 1) (RSD) in the US?

Updated: Sep 09, 2018
  • Author: T P Sudha Rao, MD; Chief Editor: Herbert S Diamond, MD  more...
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Answer

In the United States, an estimated 5% of patients who experience trauma to the upper extremity develop CRPS 1, although this figure is not known with certainty because of confusion over the diagnosis. Extremity immobilization can trigger CRPS 1. Without prophylactic measures (active physical therapy), CRPS 1 can develop in 12-20% of people who experience a hemiplegic stroke.


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