Abstract

The Superficial Radial Nerve (SRN) is a sensory branch of the radial nerve that innervates the distal radial wrist and the radial dorsum of the hand. SRN neuropathy may occur at any point along the nerve, but entrapment is commonly noted distally between the brachioradialis and extensor carpi radialis tendons. Although SRN neuropathy is well documented in the literature, there are no reports of treatment involving perineural hydrodissection. Management is usually conservative with surgery reserved for recalcitrant cases. Presented is the first reported case of SRN compressive neuropathy treated with perineural hydrodissection in the literature. Perineural hydrodissection is a novel treatment for entrapment neuropathy that may be considered prior to surgical intervention.

Keywords: Superficial radial nerve; Perineural hydrodissection; Ultrasound; Case report

Abbreviations: SRN: Superficial Radial Nerve; ECR: Extensor Carpi Radialis; NSAIDs: Non-Steroidal Anti-Inflammatory Medications; EMG: Electromyography; MRI: Magnetic Resonance Imaging; D5W: 5% Dextrose in Water; TRPV1: Transient Receptor Potential Vanilloid Receptor-1