. Practical electro-therapeutics and X-ray therapy : with chapters on phototherapy, X-ray in eye surgery, X-ray in dentistry, and medico-legal aspect of the X-ray . Fig. 137.—Normal adult hand and wrist. well formed, and may be used as a guide in studying dislocationsand fractures in the bones of the hand. This skiagraph was giventwo seconds exposure to a medium low vacuum tube, using theelectrolytic interrupter, with 25 amperes in the primary and 5 X-RAY IN FRACTURES AND DISLOCATIONS 309 milliamperes in the tube circuit. The plate was developed with theformula given in Chapter XIII. The time
. Practical electro-therapeutics and X-ray therapy : with chapters on phototherapy, X-ray in eye surgery, X-ray in dentistry, and medico-legal aspect of the X-ray . Fig. 137.—Normal adult hand and wrist. well formed, and may be used as a guide in studying dislocationsand fractures in the bones of the hand. This skiagraph was giventwo seconds exposure to a medium low vacuum tube, using theelectrolytic interrupter, with 25 amperes in the primary and 5 X-RAY IN FRACTURES AND DISLOCATIONS 309 milliamperes in the tube circuit. The plate was developed with theformula given in Chapter XIII. The time was about right for thehand, but slightly too short for the wrist and larger bones; anothersecond would have been better, but would have overexposed thehand. Fractures and displacements in the carpal bones are generallyaccompanied by fractures in either the end of the radius or ulna,and often in both. Fig. 138 shows a skiagraph of an ugly and very. Fig. 138.—Displacement of the carpal bones and fracture of the articular surface of theradius (Colles fracture). difficult displacement of the carpal bones, as well as a fracture ofthe articular surface of the radius (Colles fracture). Injuries ofthis kind should always be skiagraphed before reduction is at-tempted. No physician who cares anything for his reputation canafford to treat a case of this kind blindly, as the results will be badenough after the very best treatment in the hands of an expert inthe handling of bone injuries. Fig. 139 shows a dislocation at the wrist and a fracture of theradius, with the fragment on the dorsal surface. This was a neg-lected injury, and was seen several weeks after the accident. Itwill be noticed that this is a very difficult fracture to reduce becausethe fragment from the radius is displaced to its upper surface and 310 PRACTICAL ELECTRO-THERAPEUTICS AND X-RAY THERAPY the end of the radius is left in the shape of a wedge. An earlyrecognition
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Keywords: ., boo, bookcentury1900, bookdecade1910, booksubjecteye, bookyear1912
