Glass wound of wrist: Differential glove anesthesias (cold to mid forearm, pain somewhat higher, touch as far as elbow).
Case 406. (Romner, March, 1915.)
A German soldier, 37, wounded his right wrist in the glass of a door. The hand was put up six weeks long with very few changes of the bandage on account of suppuration, and he noticed that the arm was getting weaker and weaker, that he was losing feeling in it, and that it was beginning to sweat a good deal, so that now and then drops of sweat would stream off. The right hand was found markedly congested and 1.5 cm. larger in circumference. The fingers and hand were especially weak. There was a marked tremor of the arm. Electric excitability normal. The sensory disorder was in glove form. Hypesthesia to touch reached the elbow, analgesia to a point three fingers’ breadth below the elbow, and anesthesia to cold to a point two fingers’ breadth still lower, a sort of stepwise dissociation of sensibility resembling what is found in spinal lesions. The case was presented as one of local traumatic hysteria.
Re hysterical anesthesia, the rule is that it obeys no definite rule; that is, it may be a hemianesthesia, a segmentary, an isolated, or even a pseudo-peripheral anesthesia. It is a question whether Babinski would attempt to explain Romner’s case on the basis of medical suggestion, hetero-suggestion, or autosuggestion.
Myers has had a few instances in which anesthesia spread gradually, and in which analgesia increased after its onset.
Re reëducation of cutaneous sensations, Chavigny recommends the faradic current in successive applications, marking the extent of the zone of anesthesia with ink upon the skin. Each time the current is applied, the inked limits of the area are lessened. By this form of suggestion, not only does the anesthesia disappear, but very often the accompanying paralysis also.