. Radiography and radio-therapeutics . 229.—Radiogram of hand showing injury at themetacarpo-phalangeal joint of imlex base of the phalanx shows, in addition, somerarefaction with expansion of the bone, indicatingprobable tuberculous disease. TUBERCULOUS DISEASES OF JOINTS 263 The radiographer therefore is frequently asked to X-ray fistulse con-nected %vith bone disease by means of an opaque injection into the smus^Beck was the first to call attention to the use of a liquid emulsion of bismuthand vaseline. The composition is generally about one of the former to fourof the latter. Wh
. Radiography and radio-therapeutics . 229.—Radiogram of hand showing injury at themetacarpo-phalangeal joint of imlex base of the phalanx shows, in addition, somerarefaction with expansion of the bone, indicatingprobable tuberculous disease. TUBERCULOUS DISEASES OF JOINTS 263 The radiographer therefore is frequently asked to X-ray fistulse con-nected %vith bone disease by means of an opaque injection into the smus^Beck was the first to call attention to the use of a liquid emulsion of bismuthand vaseline. The composition is generally about one of the former to fourof the latter. When warmed this runs freely into the sinus, or it may beintroduced under pressure from a special Frr. o^o-Healed tuberculosis of lap-joint, particularly affectiug the acetabulum. Note thediffienfe betweefthe two .joints ami absorption of head and neck, with consequent tdtrng pelvis on the allected side. Various modifications of this formula have been used. All are moreor less unsatisfactory on account of the difficulty of introducing the emulsionand the ease with which it returns from the smus. Holtzknecht, Lilienfeld, and Fordes recommend a special rod con-sisting of the following : Zirkonoxyd (kontrastin).Butyri Adeps , 5 per cent. 264 RADIOGRAPHY
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