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Hoffmann's reflex (Hoffmann's sign, sometimes simply Hoffmann's, or finger flexor reflex) [1] is a neurological examination finding elicited by a reflex test which can help verify the presence or absence of issues arising from the corticospinal tract. It is named after neurologist Johann Hoffmann. [2]
The H-reflex (or Hoffmann's reflex) is a reflectory reaction of muscles after electrical stimulation of sensory fibers (Ia afferents stemming from muscle spindles) in their innervating nerves (for example, those located behind the knee).
Hoffmann's sign: Johann Hoffmann: neurology: corticospinal tract lesions: tapping distal phalanx of 3rd or 4th finger elicits flexion of same in thumb Hollenhorst plaque: Robert Hollenhorst: ophthalmology: hypertension, coronary artery disease, and/or diabetes: cholesterol embolus(i) of retinal artery(ies) Homans' sign: John Homans: thrombosis ...
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The sign termed as (H- sign) Hoffmann's sign was elicited by tapping distal to the site of injured nerve which produced tingling sensation, the sensation was neither permanent nor severe. [4] [5] [6] In October 1915, Jules Tinel described the same phenomenon in French "le signe de fourmillement". [7] [8]
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Dove Medical Press is a privately held company founded in 2003 [11] by Tim Hill, a former managing director of Adis International and five other founders. [12]As of 11 April 2013, 42 of the 131 journals were indexed in PubMed, while 30 of the 131 journals had fewer than 10 articles.
Tinel's sign (also Hoffmann-Tinel sign) is a way to detect irritated nerves. It is performed by lightly tapping over the nerve to elicit a sensation of tingling or "pins and needles" in the distribution of the nerve. [1] [2] Percussion is usually performed moving distal to proximal. [2] It is named after Jules Tinel. [3] [4] [5]