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      A abdução dos artelhos e o sinal do leque (Babinski, 1903) Translated title: The abduction of the toes and the fan sign (Babinski, 1903)

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          Abstract

          A abdução dos artelhos menores ("sinal do leque") concomitante à adoção da atitude sentada a partir do decúbito (movimento associado) ou em resposta à excitação plantar externa (resposta reflexa) foi formalmente descrita por Babinski em 1903 e contrastada com a dorsiflexão do hálux em termos dos seus respectivos valores de localização. No presente ensaio traduzimos as duas comunicações em que a abdução dos artelhos recebeu sua caracterização semiológica final e enfatizamos a distinção entre o fenômeno da abdução e a extensão reflexa dos artelhos, particularmente do grande. Aduzimos, ainda, evidências de que, na literatura anátomo-clínica e neurofisiológica dos anos subsequentes, o assim chamado "sinal de Babinski" e respostas coadjuvantes continuam gerando imprecisões conceituais, descrições inadequadas e investigações imperfeitas.

          Translated abstract

          The abduction of the lesser toes which may be observed as an associated movement or as a reflex response to stroking of the lateral plantar surface of the foot (the fan sign) was formally described in 1903 by Babinski, who compared it to the dorsiflexion of the great toe in terms of their respective values as localizing signs. In the present essay we translated into Portuguese and review the two communications in which the characterization of the abduction of the toes was made, emphasizing the distinction between this phenomenon and the reflex dorsiflexion of the toes, particularly the great toe. Evidence is adduced from the clinical and physiological literature of the succeeding years that shows that the so-called "sign of Babinski" is still surrounded by mists of inadequate clinico-anatomic concepts whence the wealth of incrogruous pathophysiological interpretations which abound in the literature of the past decades.

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          Most cited references22

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          Sémiologie des Affections du Système Nerveux

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            Medical Physiology

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              The neurological examination

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                Author and article information

                Journal
                anp
                Arquivos de Neuro-Psiquiatria
                Arq. Neuro-Psiquiatr.
                Academia Brasileira de Neurologia - ABNEURO (São Paulo, SP, Brazil )
                0004-282X
                1678-4227
                September 1996
                : 54
                : 3
                : 519-524
                Affiliations
                [01] orgnameUniversidade do Rio de Janeiro orgdiv1Hospital Universitário Gaffrée e Guinle
                Article
                S0004-282X1996000300026 S0004-282X(96)05400326
                10.1590/S0004-282X1996000300026
                a9d7a175-701d-4ac8-9883-aa856cf93041

                This work is licensed under a Creative Commons Attribution 4.0 International License.

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                Figures: 0, Tables: 0, Equations: 0, References: 22, Pages: 6
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                SciELO Brazil


                sinal de Babinski,sign of Babinski,fan sign,reflex,pyramidal syndrome,sinal do leque,reflexo,síndrome piramidal

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