Advances in radiofrequency ablation for thoracic spine pain

Radiofrequency ablation (RFA) is a neuromodulation technique that uses electrocautery to damage nerves with thermal energy and interrupt nociception and has primarily been used to treat patients with chronic back pain. While the use of RFA to modulate neuronal innervation of cervical and lumbar facet joints is well studied, research on the applications of RFA to target the thoracic spine is limited despite these facet joints accounting for pain in over 25% of patients with chronic mid-back and upper-back pain. The purpose of this paper is thus to describe RFA and its utilization in the thoracic spine for chronic back pain. A review of the literature on PubMed was conducted to identify primary evidence for RFA with a focus on only the thoracic spine. Nine papers were identified and reviewed in this article. Primary literature published on RFA-naive patients with thoracic facet joint pain has provided evidence in support of RFA for short-term and long-term pain relief in this spinal region. However, all but two of these studies utilized a cohort study design. Future studies with larger patient cohorts or that utilize a randomized control trial study design are crucial to better establish the effectiveness and long-term utility of this neuromodulation technique.