What is the role of EMG in the workup of hemiplegic shoulder pain?

Updated: Feb 08, 2019
  • Author: Robert Gould, DO; Chief Editor: Stephen Kishner, MD, MHA  more...
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Electromyography (EMG) may be beneficial when evaluating the following conditions:

  • Brachial plexopathy

  • Radiculopathy

  • Median mononeuropathy

  • Suprascapular neuropathy

  • CRPS

If the EMG and nerve studies show an identifiable nerve injury in the distribution of regional symptoms, then according to the International Association for the Study of Pain (IASP) definitions, the patient may have CRPS type-2 (causalgia), but not CRPS type-1 (RSD).

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