File:Radiography, x-ray therapeutics and radium therapy (1915) (14755007591).jpg

Identifier: radiographyxray00knox (find matches)
Title: Radiography, x-ray therapeutics and radium therapy
Year: 1915 (1910s)
Authors: Knox, Robert, 1868?-1928
Subjects: Radiography Radiotherapy
Publisher: New York, Macmillan
Contributing Library: Columbia University Libraries
Digitizing Sponsor: Open Knowledge Commons

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fragment, if detached,may be felt. Crepitus is ob-tained on moving the arm, andtherefis slight shortening. (6) Fracture through thesurgical neck. This is a commoninjury. There may or may notbe a considerable degree ofdisplacement, or the lowerpoint of the bone may be im-pacted into the upper; thelatter may be partially split. (c) The great tuberosity ofthe humerus is frequently de-tached and displaced. (d) The epiphysis of thehead may be detached from theshaft, and there may be aconsiderable degree of displace-ment. Fracture of the Shaftof the Humerus.—This boneis frequently fractured, andthe injury may occur at anypart of its length. The mostcommon injury is about thejunction of the upper with themiddle third. The displace-ment may be considerable.An unusual displacement isshown in Fig. 135, a trans-verse fracture with markedrotation of the elbow-jointinwards ; the lower fragmentof the humerus is nearly atright angles to the upper.The head of the radius appearsto have been injured.
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PLATE XII.—Fractures in Region of Elbow-joint. a, Vertical fracture of head of radius. b, Fracture through head of radius, displacement forwards of fragment. c, Fracture through lower end of humerus above epiphyseal line, displacement backwards. d, Fracture dislocation at elbow-joint. INJURIES IN REGION OF ELBOW-JOINT 101 Injuries in the Region of the Elbow-joint Fracture of the Lower End of the Humerus.—The humerus isfrequently involved in injuries of the elbow-joint in adults and in children.It gives rise to a typical displacement, which is clearly revealed uponexamination of the radiographs obtained. The displacement varies withthe direction of the injury. The lower end, along with the elbow-joint,may be displaced backwards, while there may also be some lateral displace-ment and rotation. Stereoscopic radiographs are extremely useful in thesecases.

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