. The Roentgen rays in medicine and surgery as an aid in diagnosis and as a therapeutic agent; designed for the use of practitioners and students . he thumbto the index finger. This inability interfered with the use of the handin many ways. An X-ray photograph taken two and a half weeksafter treatment showed satisfactory results, and later all disablementdisappeared. Beatson concludes by recommending that all sprains ofthe right thumb be X-rayed, for otherwise a fracture may be overlooked. Pelvis. —■ This part of the skeleton is taken up in the chapter on theAbdomen. ^ British Medical Joiti-na


. The Roentgen rays in medicine and surgery as an aid in diagnosis and as a therapeutic agent; designed for the use of practitioners and students . he thumbto the index finger. This inability interfered with the use of the handin many ways. An X-ray photograph taken two and a half weeksafter treatment showed satisfactory results, and later all disablementdisappeared. Beatson concludes by recommending that all sprains ofthe right thumb be X-rayed, for otherwise a fracture may be overlooked. Pelvis. —■ This part of the skeleton is taken up in the chapter on theAbdomen. ^ British Medical Joiti-nal, May 5, 1900. FRACTURES AND DISLOCATIONS 493 Hip. — There are special difficulties to be encountered in obtainingan X-ray photograph of a hip-joint, particularly in stout patients; first,because the difference in the amount of rays absorbed by the thicktissues surrounding the bone and the bone itself is not so great as inthe more superficial joints, and therefore the bone does not stand out aswell in the photograph as is the case when the joints lie nearer the sur-face ; second, because the bone is at a considerable distance from the. Fig. 266. Fracture of phalanx of second finger of right hand; no displacement; little phalanx of first finger shown for comparison. plate ; third, if the hip-joint is tuberculous the contrast between thebone and the soft tissues is not so good as when the joint is normal,unless the patient is very much emaciated, because a tuberculous boneis more transparent to the rays than a normal bone, and therefore thetuberculous bone and the soft tissues are more nearly alike in regard tothe obstruction they offer to the rays. In photographing a fractured hip it is often well to place the patient


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