. Radiography and radio-therapeutics . the side of the nose will give a sharp picture. Injuries of the Cervical Vertebrae.—Two positions have already been described. The lateral is the most useful, for it shows readily very slight de-partures from the normal. Fracture dislocation of the cervical vertebra3 is a not un-common injury. Any part of the cervical region may be the seat of a dislocation. The appearances are unmistakable when wellmarked, but the doubt-ful cases give rise toconsiderable difficulty indiagnosis. Fig. 212 illus-trates a j)artial fracturedislocation of the uppercervical ver
. Radiography and radio-therapeutics . the side of the nose will give a sharp picture. Injuries of the Cervical Vertebrae.—Two positions have already been described. The lateral is the most useful, for it shows readily very slight de-partures from the normal. Fracture dislocation of the cervical vertebra3 is a not un-common injury. Any part of the cervical region may be the seat of a dislocation. The appearances are unmistakable when wellmarked, but the doubt-ful cases give rise toconsiderable difficulty indiagnosis. Fig. 212 illus-trates a j)artial fracturedislocation of the uppercervical vertebrae, whichwas not definitely dia-gnosed for several weeksafter the injury oc-cuntd. Injuries of theDorsal Vertebrae.—The dorsal spine maybe involved in injuriesof the thorax. Ribsmay be fractured andthe vertebral columncrushed, or partial dis-location may be pres-^^^^^^^^^^^^^^^^^^^^^ ent. Two positions are anterior, that is, theplate on the back andthe tube in front; (2) a lateral, to show the bodies of the vertebrae. It is 16. Fig. 211. —Fiacturi of vertebral border of scapula and three ribs( wound). 242 EADIOGRAPHY often extremely difficult to show fractures of the posterior parts of the spinalcolumn. Crushing and displacement of the bodies may be clearly of the transverse process sometimes occurs. When there is consider-able displacement it is possible to demonstrate the position of the lesion. Injuries of the lumbar vertebrae.—The lower lumbar vertebrae arevery difficult to get clear pictures of ; care must be exercised in centering thetube in order that no distortion of the fifth transverse process may this is thrown closer to the ilium it may well simulate a displacementor injury. Fracture of the Ribs The demonstration of fracture of the ribs is often a matter of greatdifficulty. This is particularly so when the bone is broken through and nodisplacement takes place. Fracture of the anterior portion, the sternalend, of t
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