. X-ray observations for foreign bodies and their localisation . studied. The patient should,,if possible, be placed for the more exact localisation in sucba position that, when he is operated upon, a vertical incisioncan be made through the localisation mark. If no satisfactoryprevious information is at hand, rough observations shouldbe made, for it will frequently occur that the foreign body i¬ nearest to the surface at the point indicated, or importantstructures may intervene making it undesirable to operatethrough this point. It is, therefore, necessary to consider theposition of the fo
. X-ray observations for foreign bodies and their localisation . studied. The patient should,,if possible, be placed for the more exact localisation in sucba position that, when he is operated upon, a vertical incisioncan be made through the localisation mark. If no satisfactoryprevious information is at hand, rough observations shouldbe made, for it will frequently occur that the foreign body i¬ nearest to the surface at the point indicated, or importantstructures may intervene making it undesirable to operatethrough this point. It is, therefore, necessary to consider theposition of the foreign body, and the best means of approach,,and localise it with the patient so placed. It matters little ifthe incision has to be carried a little deeper along the localisa- X-Ray Observations for Foreign Bodies 35 tion line, for one is fairly sure to strike the foreign careful judgment is necessary to enter laterally for aforeign body localised in this manner, and the operation isoften unsuccessful, the slightest deviation resulting in Fig. I.
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