A system of surgery . ed. Disloca-tion of the femur on to the pubes isspoken of as resembling fractures with eversion; the everted dorsalis somewhat more like; the ordinary dorsal dislocation is like frac-tures with inversion, inasmuch as inversion is present in it in all other points—the characteristic position of each disloca-tion, the presence of the head where this position indicates, thelimited mobility, the absence of crepitus, the mode and phenomenaof reduction—the fractures are absolutely different from the dis-locations. Prognosis.—Danger to life in these injuries is consider
A system of surgery . ed. Disloca-tion of the femur on to the pubes isspoken of as resembling fractures with eversion; the everted dorsalis somewhat more like; the ordinary dorsal dislocation is like frac-tures with inversion, inasmuch as inversion is present in it in all other points—the characteristic position of each disloca-tion, the presence of the head where this position indicates, thelimited mobility, the absence of crepitus, the mode and phenomenaof reduction—the fractures are absolutely different from the dis-locations. Prognosis.—Danger to life in these injuries is considerable; espe-cially in those due to slight violence in feeble old people, in whom,when confined to bed, hypostatic pneumonia, bed sores, delirium sooncome on, and death quickly ensues. The more severe injuries kill byshock. As to function, fractures at the base of the neck practicallyaiways unite by bone : large masses of callus are found binding theneck and trochanteric fragments together as in a collar, sections. 282.—Bony Union after an intra-capsular Fracture, the line ofwhich is clear. The position ofthe trochanter, with its outersurface looking backwards, showsthat eversion has been extreme;shortening was probably not morethan half an inch. In this casethe posterior part of the neck mayhave been impacted in the head.(Charing Cross Museum.) FRACTURE OF THE FEMUR. 843 showing little real blending between the neck and the bone around it(Figs. 278—281). As we pass towards the head the tendency to bony-union gets less and internal to the middle it rarely occurs. The reasonsassigned are, that in the absence of impaction, which is less commonthan at the base, it is difficult to fix the fragments together; that thehead receives no arterial supply—the branches of the sciatic arteryentering the neck behind being torn through, and the vessel in theligamentum teres ending in a loop at the bone ; that the subjects areoften feeble and both fragments degenerate. If the fragmen
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