Concentric Needle Electromyography Findings in Patients with Ulnar Neuropathy at the Elbow
Simon Podnar · 2024
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Description
Simon Podnar maps which muscles betray a pinched ulnar nerve at the elbow, needle in hand, in this 2024 study. Ulnar neuropathy at the elbow is common, and needle electromyography helps confirm it, but clinicians argue over which muscles to sample and which findings matter. Podnar reexamined recordings from 170 patients covering 175 arms, comparing two hand muscles and two forearm muscles served by the nerve.
Spontaneous denervation, the crackle of dying motor units, showed most often in the first dorsal interosseous of the hand, at 62 percent. Chronic neuropathic change peaked in the little finger's abductor, at 88 percent. The forearm muscles told a weaker story on both counts, and hand muscles overall outperformed them for sensitivity. His practical verdict: for denervation, sample the first dorsal interosseous; for chronic change, the abductor; and do not rely on the forearm to make this diagnosis.
Catalog record
| CREATOR | Simon Podnar |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 19 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |