Low back pain (LBP) is ranked as the top single cause of disability worldwide. Costs have risen faster than for any other health condition and LBP is now equal to ischemic heart disease, and second only to cancer, as the costliest health condition. Approximately 40% of people who experience acute LBP develop chronic pain. These individuals are unresponsive to treatment, experience high levels of pain, struggle to perform daily tasks and frequently develop psychosocial comorbidities. The enormous scale of the problem is matched only by the mystery that accompanies it: despite decades of research, why some people develop chronic LBP while others do not, remains unknown.
The identification of biomarkers that can predict who will develop chronic LBP is a holy grail of pain research. Our new research has uncovered evidence for a unique biomarker signature that appears to predict i) an individual’s susceptibility to high pain severity, even before pain begins and ii) an individual’s susceptibility to developing chronic LBP following an acute episode. These biomarkers are now undergoing detailed investigation in on-going studies.