. The medical and surgical uses of electricity : including the X-ray, Finsen light, vibratory therapeutics, and high-frequency currents . Fig. 215,—Ideal Union in Fracture of the Olecranon, shown by-Fig. 214, three weeks after the injury.(Courtsey of Dr. Carl Beck:—New York Medical Journal.) A board upon which are stretched wires well inked is placed on aphotographic plate, where the parts to be skiagraphed rests. Theskin is thus marked with ink from the wires, giving lines for local-ization. Two exposures are made, the tube being suspended above thetransverse wires, and at each exposure equid
. The medical and surgical uses of electricity : including the X-ray, Finsen light, vibratory therapeutics, and high-frequency currents . Fig. 215,—Ideal Union in Fracture of the Olecranon, shown by-Fig. 214, three weeks after the injury.(Courtsey of Dr. Carl Beck:—New York Medical Journal.) A board upon which are stretched wires well inked is placed on aphotographic plate, where the parts to be skiagraphed rests. Theskin is thus marked with ink from the wires, giving lines for local-ization. Two exposures are made, the tube being suspended above thetransverse wires, and at each exposure equidistant from a point THE ROENTGEN OR X-RAYS. 6ii directly above the intersection of the wires. The point of crossing of twothreads stretched from two points, indicating the two positions of thetube, to the images on the plates, indicates the position of the foreignbody. Fractures and Dislocations.—Most fractures are readily enoughrecognized by the usual methods, but in some instances these fail, and. Fig. 216.—Luxation of the Knee in a Case of Chronic Myelitis(Dr. A. D. Rockwell). the character of the injury is determined only by X-ray is useful also in settling the point in doubtful cases where there is inreality no fracture. It is beUeved to be especially valuable in obliquefractures in enabling the surgeon to watch the progress of union, andto at once note and thus be able to remedy any maladjustment of theparts, however slight. To simply detect the existence of a fracture,a fluoroscopic examination is in general quite as good a method, and 6l2 ELECTRO-SURGERY. certainly easier and quicker than skiography, but as a guide to treat-ment in complicated and difficult cases the latter method is far prefer-able. The special value of X-ray examination is illustrated more particu-larly in fractures in the neighborhood of joints, and of the phalangesand metacarpal bones. These latter are quite liable to remain undis-covered, and it is recommended that all severe
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