Physiotherapeutic treatment associated with neuroscience of pain education for patients with chronic non-specific low back pain - single-blind randomized pilot clinical trial

Objective: Pain Neuroscience Education (PNE) shows improvement in pain and functional capacity in patients with chronic low back pain (CLBP). Therefore, the study aimed to verify if the physiotherapeutic treatment associated with PNE decreases the functional disability of patients with nonspecific CLBP. Methods: Forty patients were clinically evaluated and answered the following questionnaires: Brief Pain Inventory (BPI), Central Sensitization Inventory (CSI), Roland-Morris Disability Questionnaire (RMDQ), Pain Catastrophizing Scale (PCS), Tampa scale of kinesiophobia, hospital anxiety and depression scale (HADS), SF6D quality of life questionnaire and performed quantitative sensory tests (QSTs). Afterwards, they were randomly divided into the intervention group (IG, n=20) and the control group (CG, n=20). Both performed kinesiotherapy exercises twice a week for 6 weeks. The IG received 3 individual PNE sessions and answered the Pain Neurophysiology Questionnaire. Results: IG showed significant improvement for all variables analyzed (p<0.001). The association decreased the kinesiophobia (estimated difference between CG-IG means: 7.6 - 95% CI: 2.3-12.9) (p=0.006). In the lumbar paravertebral region (CG and IG), there was a statistical difference in the intensity of CLBP in the QSTs (p<0.05). Conclusion: the association showed better results compared to only therapeutic exercises to reduce kinesiophobia and change the perception of pain intensity in the lumbar region.