Sudden Lower Limb Arthralgia/Trauma Triggering Fibromyalgia

Fibromyalgia (FM) is a common systemic disorder characterized by widespread musculoskeletal pain and a generalized reduction in pain threshold. The application of the American College of Rheumatology (ACR) Fibromyalgia classification criteria in 1990 has resulted in increasing recognition of the syndrome. The prevalence of FM in the United States is approximately 2%-4%, of which about 80% are women in the age range of 20 to 60 years. The cause of fibromyalgia is not clearly identified; however, it is assumed to involve a combination of genetic and environmental factors, with half the risk attributed to each.