Ultrasound-guided peripheral nerve stimulation implantation in the spiral groove. A case report.

Neuropathic pain can be treated with peripheral nerve stimulation (PNS), a technique that has become more widespread following the introduction of ultrasound-guided placement. Superficial radial nerve neuropathy is a common disorder, and implanting a PNS device in the distal humeral has been shown to provide good pain control; however, the nerve block test is negative is some patients, and are therefore not candidates for neurostimulation. We report a case of ultrasound-guided implantation of a peripheral nerve stimulator in the spiral groove to treat superficial radial nerve neuropathy. The treatment provided good pain control for more than 1 year, at which time the electrode lead fractured and had to be surgically removed and reimplanted. This may be an effective alternative in certain patients, although further studies are required.