Chronic Widespread Back Pain is Distinct From Chronic Local Back Pain Evidence From Quantitative Sensory Testing, Pain Drawings, and Psychometrics

摘要

Objectives: Whether chronic localized pain (CLP) and chronic widespread pain (CWP) have different mechanisms or to what extent they overlap in their pathophysiology is controversial. The study compared quantitative sensory testing profiles of nonspecific chronic back pain patients with CLP (n = 48) and CWP (n = 29) with and fibromyalgia syndrome (FMS) patients (n = 90) and pain-free controls (n = 40).