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Injuries of nerves and their consequences - Reflex Sympathetic ...

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220 INJURIES OF NERVES.<br />

Taste was restored to the tongue, although not perfectly.<br />

Tact <strong>and</strong> pain were still absent.<br />

October 20th.— There is some feelino^ in the tono-ue,<br />

but no motion on the left side, <strong>and</strong> no change in the nutrition.<br />

Returned to dut3% October 20, 1865.<br />

Reflected palsy in remote regions, the result <strong>of</strong> a ball<br />

wound, though rare, is not to be lost sight <strong>of</strong>. IS'or should<br />

it be forgotten that when one nerve <strong>of</strong> a limb has been<br />

subjected to prolonged pressure, as in Waller's experiments,<br />

the loss <strong>of</strong> power may not be limited to its own<br />

muscular distributions, but may also involve those which<br />

had not been primarily injured. This efiect is too sudden<br />

to be ascribed to progressive neuritis. As yet I have not<br />

met with it in any clinical example <strong>of</strong> neural compression.<br />

Loss <strong>of</strong> function in a part is usually sufficient to indicate<br />

what nerve has been injured, <strong>and</strong> to what degree;<br />

but as regards the h<strong>and</strong>s, <strong>and</strong> perhaps also the feet, this<br />

would seem to be less valuable as a diagnostic means<br />

than might at first be supposed. There are, for example,<br />

rare instances in which section <strong>of</strong> the median has failed<br />

to cause loss <strong>of</strong> sensation or motion in the regions to<br />

which it is<br />

commonly distributed, while in other cases,<br />

quite as uncommon, the return <strong>of</strong> function after section<br />

has been so rapid as to have cast doubt upon the fact <strong>of</strong><br />

In<br />

total nerve division, had this been other than certain.<br />

the vast majority <strong>of</strong> instances, however, the loss <strong>of</strong> motion<br />

in some muscles, <strong>and</strong> the defect <strong>of</strong> sense in<br />

definite skin<br />

spaces, will positively tell us what nerve has been hurt,<br />

<strong>and</strong> also the extent <strong>of</strong> the lesion.<br />

In case <strong>of</strong> doubt as to the completeness <strong>of</strong> the nerve<br />

section, or in any <strong>of</strong> the anomalous examples <strong>of</strong> apparent<br />

division with continuance <strong>of</strong> sensation in the distal<br />

distribution <strong>of</strong> the hurt nerve, the use <strong>of</strong> faradaic currents<br />

applied to the nerve above the wound would surely

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