. X-ray observations for foreign bodies and their localisation . Illustration 51. Antero-posterior and lateral direct radiographs on bromide paper. These pictures give an idea of the amount of detail that can be obtained. Sequestra, osteomyelitis and rarefying osteitis are well demonstrated. I submit that here is the place for direct bromide the tiine of these first injuries in the shaft of the bonesthere are few line details to diagnose; large sheets of bromidepaper may be used, and this has the advantage of includingthe articulations at both ends, which will then disclose the 78 X-


. X-ray observations for foreign bodies and their localisation . Illustration 51. Antero-posterior and lateral direct radiographs on bromide paper. These pictures give an idea of the amount of detail that can be obtained. Sequestra, osteomyelitis and rarefying osteitis are well demonstrated. I submit that here is the place for direct bromide the tiine of these first injuries in the shaft of the bonesthere are few line details to diagnose; large sheets of bromidepaper may be used, and this has the advantage of includingthe articulations at both ends, which will then disclose the 78 X-Ray Observations for Foreign Bodies nature and the degree of any displacement present. Antero-posterior and lateral views may be taken side by side on thesame sheet. The development takes but a minute; and as thesaving of time and labour at the front is important, during arush of work, this is a great gain; moreover, if so desired, thetime saved can be used to make prints from negatives, where. Illustration 52. Radio for position of fragments. Femur. Bedside radiograph taken with portable apparatus passing 2 , 42 M. Penetration equivalent to 35 inch spark-gap, distance 22 inches. plates have been necessary to decide as to the involvement ofa joint. When so made these radios complete the records ofthe case, by providing the earlier observations which are sofi-equently absent. There are still many surgeons who prefer, in spite of the X-Kay ObstTvatioiis for Foreign Bodies 79 mathematical accuracy of improved localisation methods, tooperate for the removal of foieign bodies by the informati(jngained from antero-posterior and lateral plates; ov it may bedesirable, in conjunction with a localisation, to record therelationship of a foreign body to some bony landmark in aradiograph. For these purposes the use of plates is unwar-


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