Complex regional pain syndrome (CRPS) — one type of which was formerly known as reflex sympathetic dystrophy — is an uncommon, chronic condition that usually affects your arm or leg.
CRPS occurs in two types, with similar signs and symptoms but different causes:
CRPS Type I. Previously known as reflex sympathetic dystrophy syndrome (RSD), typically occurs after an illness or injury that didn’t directly damage the nerves in your affected arm or leg.
CRPS Type II. Once referred to as causalgia this type follows a distinct nerve injury. Both types share common clinical features:
•Skin sensitivity, pain and burning sensation
•Changes in skin temperature, color and texture.
•Changes in hair and nail growth.
•Joint stiffness, swelling and damage.
•Muscle spasm, muscle weakness and tremor
•Decreased ability to move the affected extremity
Improvement of CRPS is possible if treatment begins within a few months of your first symptoms. Treatment options include: