A system of surgery : theoretical and practical . sly healthy, the sequestrum actsas an irritant upon it, setting up, first inflammation and thickening to a variabledistance, and then ulceration. Thus a groove is traced around the sequestrum; andthe formation of this groove is accompanied by suppuration, as has been describedabove (see p. 278). The pus formed in the neighbourhood of the dead parts makesits way to the nearest surface, and in so doing interrupts the formation of the Fig. 49.—From a preparation (No. 3174) of Ne-crosis of the Tibia, in the Museum of the RoyalCollege of Surgeons. T
A system of surgery : theoretical and practical . sly healthy, the sequestrum actsas an irritant upon it, setting up, first inflammation and thickening to a variabledistance, and then ulceration. Thus a groove is traced around the sequestrum; andthe formation of this groove is accompanied by suppuration, as has been describedabove (see p. 278). The pus formed in the neighbourhood of the dead parts makesits way to the nearest surface, and in so doing interrupts the formation of the Fig. 49.—From a preparation (No. 3174) of Ne-crosis of the Tibia, in the Museum of the RoyalCollege of Surgeons. To show the various pointsconnected with necrosis of a portion of the shaftof a long bone—the sequestrum—its invaginatingsheath, formed in a great measure by periostealdeposit, and terminating on the healthy surfaceof the hone, at some distance from the seat ofdisease, the openings, or cloacas, throu^rh which thesequestrum is exposed, and (in this instance) theimplication of the neighbouring joint from theextension of these cloacte into
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