Treatment of posterior interosseous nerve entrapment syndrome with ultrasound-guided hydrodissection: A case report

Figure 2 Nerve conduction and electromyogram examination results. A and B: The amplitude of the right radial nerve conduction at the forearm and elbow joint was low, and the conduction time was long (A-I and B-I); C: A few spontaneous potentials were observed in some of the right arm muscles (C-I); D: Right superficial radial nerve conduction was normal (D). After treatment, the amplitude and time of the right radial nerve conduction at the forearm and elbow joint had basically recovered to normal (A-II and B-II), and there was no spontaneous potential in the right arm muscles (C-II).