Atlas and epitome of traumatic fractures and dislocations . Fiy. 4. !?: Reich ho U1 Mundu-n. FRACTURES OF THE UPPER EXTREMITY. 219 is bent in the shape of a bayonet and constitutes the typi-cal symptom of this fracture. This deformity is best ex-plained by assuming a continued action of the force at thetime of injury. As soon as the fracture has been pro-duced, the weight of the falling body must continue toexert its influence until the end of the upper fragmenttouches the ground. Muscular action may have some-thing to do with the production of this typical deformity,but the
Atlas and epitome of traumatic fractures and dislocations . Fiy. 4. !?: Reich ho U1 Mundu-n. FRACTURES OF THE UPPER EXTREMITY. 219 is bent in the shape of a bayonet and constitutes the typi-cal symptom of this fracture. This deformity is best ex-plained by assuming a continued action of the force at thetime of injury. As soon as the fracture has been pro-duced, the weight of the falling body must continue toexert its influence until the end of the upper fragmenttouches the ground. Muscular action may have some-thing to do with the production of this typical deformity,but the chief cause lies in the external force itself. Theepiphyseal fragment is displaced upward and comes intopartial supination, while the shaft of the radius is pro-nated. The connection between the lower ends of theradius and the ulna exerts some influence on the characterof the deformity, which is produced in the following man-ner : As long as the ligamentous connection between thetwo bones remains intact the lower end of the ulna ap-proximately forms the
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectfractur, bookyear1902
