File: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 (1912) (14570509978).jpg

Identifier: practicalelectro00mart (find matches)
Title: 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
Year: 1912 (1910s)
Authors: Martin, James Madison, 1866-1947
Subjects: Electrotherapeutics X-rays Diagnosis, Radioscopic Eye Electric Stimulation Therapy X-Ray Therapy Ophthalmologic Surgical Procedures
Publisher: St. Louis : C.V. Mosby
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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Fig. 136.—Fracture of the scaphoid. a clearly marked fracture of the scaphoid near its middle. Thisfact explained why her wrist had been so slow in recovering fromthe injury. Most delayed recoveries from injuries to the wrist aredue to fractures of one or more bones. Only by means of the skia-graph can these obscure injuries be revealed. The use of the 308 PRACTICAL ELECTRO-THERAPEUTICS AND X-RAY THERAPY fluoroscope should be discouraged, as it can not always be dependedupon, even in the hands of careful observers. Fig. 137 is a skiagraph of a normal hand and wrist of an adult.The epiphyseal unions are complete and the joints and bones are
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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

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