Palmaris brevis spasm: an occupational syndrome.
case_series · Level IV
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- Record sourced from PubMed, PMID 12771275.
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Abstract
Described are five patients who developed palmaris brevis (PB) spasm syndrome following prolonged use of a computer mouse and keyboard. Electromyography showed spontaneous activity characterized by irregular discharges of single motor unit potentials and myokymia from PB muscle that did not disappear after ulnar nerve block at the wrist, suggesting a distal lesion.
Medical subject headings
- Computers
- Hand
- Myokymia
- Occupational Diseases
- Spasm
- Ulnar Neuropathies
Anatomy
- hand