Peripheral Nerve Stimulation Using High-Frequency Electromagnetic Coupling Technology to Power an Implanted Neurostimulator With a Separate Receiver at the Suprascapular Nerve for the Treatment of Painful Spasticity: A Case Series.

BACKGROUND

Painful spasticity in the shoulder is a debilitating condition that significantly impairs quality of life. Conservative treatments often fail to provide adequate relief, leaving patients with limited therapeutic options.

CASE REPORT: A retrospective study was conducted on 8 patients treated with the permanent Freedom® Peripheral Nerve Stimulator (PNS) System at the suprascapular nerve (SN) for painful shoulder spasticity. At baseline, patients reported a mean pain score of 7.6 ± 1.6. Following the trial phase, pain scores decreased to 2.9 ± 1.9 (62%; P < 0.001). At 3 months, the mean pain score was 3.2 ± 1.9 (58%; P < 0.001). Patient satisfaction was high, with 88% recommending the system and considering additional implants for other nerve targets. No adverse events were observed.

CONCLUSIONS

The Curonix Freedom PNS System, targeting the SN, is an effective and safe therapy for treating chronic shoulder pain with spasticity, resistant to conservative therapy.