. Medical electricity; a practical treatise on the applications of electricity to medicine and surgery. rves subjected to injury, paralysis en-sues in the parts innervated by them. Thus, the pressureof a crutch, a severe blow, a penetrating or gunshot wound, 196 ELECTRO-THERAPEUTICS. may each by injury to nerve trunks induce more or lessextensive paralysis, according to the importance of thenerve or nerves injured. The reactions of degenerationensue in such cases, both in the nerves and muscles, butthey are not the same in both. As regards the nerves, theirritability to both faradic and galvan
. Medical electricity; a practical treatise on the applications of electricity to medicine and surgery. rves subjected to injury, paralysis en-sues in the parts innervated by them. Thus, the pressureof a crutch, a severe blow, a penetrating or gunshot wound, 196 ELECTRO-THERAPEUTICS. may each by injury to nerve trunks induce more or lessextensive paralysis, according to the importance of thenerve or nerves injured. The reactions of degenerationensue in such cases, both in the nerves and muscles, butthey are not the same in both. As regards the nerves, theirritability to both faradic and galvanic currents lessensgradually when the paralysis occurs, and at the expirationof one or two weeks has entirely disappeared. If the nerveundergoes degeneration, or cure, after a time, the galvanicexcitability is slowly restored, beginning from the centralportion and extending peripherally, and afterward the fara-dic excitability ; but the reaction to the stimulus of the willprecedes the electrical; in other words, voluntary motion isrestored before the nerve reacts to the currents (Fig. 78). Fig. Paralysis and atrophy of first dorsal interosseous muscle. The behavior of the muscles has been already described;the faradic contractility disappears, and an abnormal readi-ness to contract to galvanism is developed. After a timethe galvanic excitability declines to normal, and the faradicexcitability is restored. We owe these important observa-tions on the phenomena of the reactions of degenerationto There is universal agreement as to the value ofelectricity in the peripheral paralyses to restore the muscles, 1 Deutsch. Archiv fur klin. Medicin, vol. , 1868. ELECTRICITY IN THE PARALYSES. 197 and to prevent deformity (Fig. 79). Duchenne1 especiallydetails many examples of wasting and deformity of themembers, restored by suitable electrical treatment (). He prefers, as is usual, the faradic applications. Headmits that those muscles whose faradic contractility is bu
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectro, bookyear1887
