1. In latent tetany mild mechanical stimulation of the trigeminal nerve causes severe pain, flexion of the terminal phalanx of the thumb and of the second and third phalanges of one or more of the fingers when the volar surface of the terminal phalanx of the fingers is flicked.
Synonym: digital reflex, Hoffmann's reflex, snapping reflex.
(05 Mar 2000)
Hoffmann's Sign Pictures
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