. The principles and practice of modern surgery . udy. V. Dislocations of the Wrist may readily be distinguished by thealtered position of the hand, which is thrown either backwards or forwardsif both bones be dislocated, or twisted if only one be displaced,—and bythe alteration of the natural relative position of the styloid processes of theradius and ulna with the bones of the carpus. They are reduced bysimple extension.* VI. Dislocations of the Hand.—The os mngnum and os cuneiformeare sometimes partially dislocated through relaxation of their ligaments,and form projections at the back of th
. The principles and practice of modern surgery . udy. V. Dislocations of the Wrist may readily be distinguished by thealtered position of the hand, which is thrown either backwards or forwardsif both bones be dislocated, or twisted if only one be displaced,—and bythe alteration of the natural relative position of the styloid processes of theradius and ulna with the bones of the carpus. They are reduced bysimple extension.* VI. Dislocations of the Hand.—The os mngnum and os cuneiformeare sometimes partially dislocated through relaxation of their ligaments,and form projections at the back of the hand, which must not be mistakenfor ganglia. Mr. Fergusson has also known the os pisiforme dislocated bythe action of the flexor carpi ulnaris muscle. Treatment.—Cold affusion, friction, and mechanical support. Dislocations of the thumb, fingers, and toes, are difficult of reduction, inconsequence of the strength and tightness of their lateral ligaments, andthe small size of the part from which extension can be made. A firm hold Fig. may be obtained by means of a piece of tape fastened with the knot calledthe clove hitch, represented in this figure. But it is a good plan to placea part of the tape round the head of the dislocated bone, so as to pull itstraight forwards into its place. Extension should be made towards thepaJm, so as to relax the flexor muscles. But before the reduction hasbeen effected, says Mr. Liston, it has been in some cases even foundnecessary to divide one of the ligaments; the external is most easilyreached ; it is cut across by introducing a narrow-bladed and lancet-pointedknife through the skin at some distance, and directing its edge against theresisting part. [A very firm grasp may be secured upon the fingers, or toes, when lax-ated, by using the sort of tube made of bark plaited as basket-work bythe Indians of our northern borders. Tliis should be slipped upon thepart,—a finger for example,—and its construction is such, that when it
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