. The Röntgen rays in medical work . silver wire. In this particularclass of cases the surgeon will learn from the rays—(1) whetherwiring is advisable, (2) whether proper apposition has beensecured, (3) whether bony union has followed. The plan of nailing recent fractures of the condyles of thehumerus, or of a loose fragment of bone, as advocated by somesurgeons, would in many instances be hardly feasible without aclear knowledge of the condition of the broken bone, gained froma screen examination or a radiogram. In the method of treat-ing false joints or malunited fractures by Lanes screws, a
. The Röntgen rays in medical work . silver wire. In this particularclass of cases the surgeon will learn from the rays—(1) whetherwiring is advisable, (2) whether proper apposition has beensecured, (3) whether bony union has followed. The plan of nailing recent fractures of the condyles of thehumerus, or of a loose fragment of bone, as advocated by somesurgeons, would in many instances be hardly feasible without aclear knowledge of the condition of the broken bone, gained froma screen examination or a radiogram. In the method of treat-ing false joints or malunited fractures by Lanes screws, aEontgen photograph is of the utmost value in assisting thesurgeon to determine before operation the exact length of thescrew required in each particular case. By uniting fractures ofthe leg-bones (such as Potts) by screws that are too long, seriousdamage can be inflicted on nerves or bloodvessels unless thesurgeon avails himself of the aid of the #-rays. The accompanyingfigure (54) shows that the screw used was of the right length. Fig. 54.—Lanes Screw in Tibia. The uneven outline is due to the bandages. Mr. Lynn Thomas. 10-2 MEDICAL AND SURGICAL APPLICATIONS 131 and that the mechanical adaptation of the tibial fragments wassatisfactory. Some of the remarks made about screwing applyalso to wiring and nailing. Again, the screwing on of aloose fragment offers a promising field for treatment. An excellentcase in which sound union of a fractured olecranon was securedin this way was published by Mr. Thomas Moore, * Where a fracture is attended by such complications as impac-tion, comminution, multiplicity, interposed tissues, extension intoa joint, or dislocation, Eontgen methods afford most useful in-formation. The practical value of the method, however, extendsbeyond diagnosis, for by further investigation it can be ascer-tained whether the bones have been reduced to proper position,and whether sound bony union has followed. The progress ofa fracture can be followed r
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