Abstract
A 28-year-old man underwent surgery for cubital tunnel syndrome 10 months ago. His attending orthopedist introduced him to our clinic because he still had sharp pain on motion accompanied with numbness dysesthesia and allodynia around the scar area, which he could not touch. Irradiation of linearly polarized near-infrared ray and oral administration of pregabalin provided no effect. Oral administration of mexiletine was then begun, and it relieved dysesthesia to some extent. Therefore we began topical application of 9% lidocaine ointment to the affected area and brachial plexus block. This resulted in twenty-four hours of complete pain relief. Furthermore, prolonged complete pain relief in the scar area was obtained by brachial plexus block followed by local infiltration of levobupivacaine to the scar area. By these therapies, he was able to touch the ulnar area of his forearm, even after the effect of brachial plexus block had disappeared, and his daily life was remarkably improved.
