Complex Regional Pain Syndrome (CRPS), also known as Reflex Sympathetic Dystrophy (RSD), is an incurable neurologic disorder characterized by severe burning pain, pathological changes in bone and skin, excessive sweating, tissue swelling, extreme sensitivity to touch, and color or temperature changes in an extremity. Dr. Philip Getson will host the annual RSD Association of America CRPS/RSD Walk/Run at Cooper River Park, in Pennsauken, September 13. The event starts at 9 a.m., with pre-registration at 8 a.m.

The park offers a three-and-a-half mile long course or a quarter- mile short course. In addition to the walk/run, participants can enjoy live music, healthy snacks, celebrity guests and prizes.

CRPS often occurs after a trauma to an extremity, when an injury does not properly heal, causing the nerves to misfire and send constant pain signals to the brain. Approximately 50,000 new cases of CRPS occur each year, yet most individuals are not familiar with the syndrome.

Getson has been researching CRSP and treating patients with the disorder since the mid-1990s, helping construct the protocols for ketamine infusion therapy that are used in his office and nationwide.

Cost: $25, advanced registration, includes T-shirt; $35, day of walk (T-shirt not guaranteed). Location: 5300 N. Park Dr. at McClellan Blvd., The Stadium. For more information or to register, call 856-983-7246 or visit FirstGiving.com/rsds/crpsrsdsawarenesswalk.