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Restorative Neurostimulation for Chronic Mechanical Low Back Pain: Results from a Prospective Multi-centre Longitudinal Cohort.

Pain and Therapy 2021 December
INTRODUCTION: Low back pain impacts most people throughout the course of their lives and contributes significantly to the global burden of disease. In some patients, symptoms resolve with little intervention, while others are amenable to surgical intervention, some cases are intractable to current care paradigms. Restorative neurostimulation is an emerging therapy for chronic mechanical low back pain.

METHODS: We conducted a prospective post-market follow-up of 42 patients treated for longstanding chronic mechanical low back pain with restorative neurostimulation. Patients were followed up at 45, 90, and 180 days and 1 and 2 years following activation of the device. Pain, disability, and health-related quality of life were recorded.

RESULTS: Among the 37 patients completing 2-year follow-up, numerical rating scale (NRS) pain scores improved from 7.0 ± 0.2 to 3.5 ± 0.3 (p < 0.001), Oswestry Disability Index (ODI) scores improved from 46.2 ± 2.2 to 29.2 ± 3.1 (p < 0.001), and health-related quality of life (measured by the EuroQol 5-Dimension 5-Level questionnaire-EQ-5D-5L) improved from 0.426 ± 0.035 to 0.675 ± 0.030 (p < 0.001). Additionally, 57% of patients experienced a greater than 50% reduction in pain, and 51% of patients benefited by a greater than 15-point reduction in ODI, both substantial improvements.

CONCLUSION: This real-world sample of patients shows that restorative neurostimulation can provide substantial and durable benefit to a cohort of patients that have traditionally had few reliable treatment options. Our findings support the continued used of this therapy in well-selected patients.

TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT01985230.

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