. Radiography and radio-therapeutics . umerus.—This bone is frequentlyfractured, and the injury may occur at any part of its length. The mostcommon injury is about the junction of the upper with the middle displacement may be considerable. An unusual displacement is shownin Fig. 218, a transverse fracture with marked rotation of the elbow-jointinwards ; the lower fragment of the humerus is nearly at right angles to theupper. The head of the radius appears to have been injured. Injuries in tlie Region of the Elbow-joint Fracture of the Lower End of the Humerus.—The humerus isfrequentl
. Radiography and radio-therapeutics . umerus.—This bone is frequentlyfractured, and the injury may occur at any part of its length. The mostcommon injury is about the junction of the upper with the middle displacement may be considerable. An unusual displacement is shownin Fig. 218, a transverse fracture with marked rotation of the elbow-jointinwards ; the lower fragment of the humerus is nearly at right angles to theupper. The head of the radius appears to have been injured. Injuries in tlie 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 gives rise to a typical displacement, which is clearly revealed upon ex-amination 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 PLATE XXVI. — in Kkgion of thk a, Fracture ;it upper eud of liuiuerns, a longitudiiKil splitting nt tlic sliaft witli lieail displacedforwards and downwards (dislocation of the lu-ad^ 6, Separation of the great tuberosity of the humerus. c. Fracture through lower aspect of glenoid cavity. d, Fracture of the clavicle (nuddle third), the base of the acromion process is irregular and ajipearsto be fractured.
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