Use of peripheral subcutaneous field stimulation for the treatment of axial neck pain: a case report.

Objective. To present a novel technique of neuromodulation for the treatment of axial neck pain. Materials and Methods. A case of a patient with history of long-standing axial neck pain with previous cervical spine operation and confirmed discogenic pain is presented. Traditional treatment measures did not provide adequate pain relief. A trial of peripheral subcutaneous field stimulation (PSFS) was performed. Following an excellent response during a week-long trial, a permanent PSFS system was implanted. The patient was followed for nine months after internalization. Results. Seven-day trial of PSFS resulted in complete relief of the patient's pain. This 100% relief of pain continued after the implantation of permanent PSFS system consisting of two quadripolar electrodes, one placed over the paraspinal muscles parallel to midline, and the other positioned horizontally over the ipsilateral trapezius muscle. The patient was gradually weaned off of all opioid medications and continues to report 100% reduction in pain intensity at the nine-month follow-up. Conclusion. PSFS represents a new and promising modality in treatment of axial neck pain. Exact mechanism of the pain relief remains unclear.