{"id":3259,"date":"2020-04-16T14:04:40","date_gmt":"2020-04-16T21:04:40","guid":{"rendered":"https:\/\/keck.usc.edu\/news\/understanding-complex-regional-pain-syndrome-crps\/"},"modified":"2023-11-26T08:31:38","modified_gmt":"2023-11-26T16:31:38","slug":"understanding-complex-regional-pain-syndrome-crps","status":"publish","type":"post","link":"https:\/\/keck.usc.edu\/news\/understanding-complex-regional-pain-syndrome-crps\/","title":{"rendered":"Understanding Complex Regional Pain Syndrome (CRPS)"},"content":{"rendered":"\n \n \n\n\n\n\n\n\n\n
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Understanding Complex Regional Pain Syndrome (CRPS)<\/h1>\n\n\n<\/div>\n \n \n
\n \n April 16, 2020<\/span>\n <\/div>\n \n \n
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Complex Regional Pain Syndrome is a painful condition of nerve malfunction that usually follows an injury to an extremity. The pain exceeds in both magnitude and duration the expected clinical course of the original injury, often resulting in significant impairment of function, and showing variable progression over time.<\/p>\n

The\u00a0history of Complex Regional Pain Syndrome<\/a>\u00a0is well documented. In 1900 at the 29th Congress of the German Society of Surgery, Paul Sudeck suggested that the signs and symptoms of Reflex Sympathetic Dystrophy (RSD) may be caused by an exaggerated inflammatory response to injury or operation of an extremity.<\/p>\n

Rene Leriche (1879-1955) noted that the sympathetic nervous system dysfunction as a cause of pain, and recommended therapeutic surgical sympathectomy. In the 1950s John Bonica promoted the term RSD and described it\u2019s 3 stages: acute, dystrophic, and atrophic.<\/p>\n

Like what you\u2019re learning? Explore the Keck School of Medicine of USC\u2019s\u00a0Online Pain Medicine program<\/a>.<\/p>\n

Get More Information<\/a><\/p>\n

IASP Nomenclature<\/strong><\/h3>\n