Biernacki's Sign
Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.
Summary
Biernacki's sign is a clinical finding characterized by the loss of sensitivity to pressure in the ulnar nerve. It is historically associated with tabes dorsalis and general paresis of the insane.
Encyclopedia entry (1928–1936)
BIERNACKI'S SIGN (Biernacky) is expressed as an insensitivity of the ulnar nerve to pressure; it is observed in tabes dorsalis and progressive paralysis.
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Cite this page
“Biernacki's Sign.” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.pages.dev/article/biernackis-sign/