A system of surgery : pathological, diagnostic, therapeutic, and operative . t process of restoration is only held in abey-ance, neither advancing nor receding ; by andby it begins again, and then often proceedswith its wonted rapidity. Such cases arefrequently very trying to the surgeons pa-tience, but they generally turn out well in theend, provided sufficient care has been takento preserve the parts in their proper the ununited fracture, on the other hand,the process of consolidation is either com-pletely prevented, or, after having progressedfor some time, is at len
A system of surgery : pathological, diagnostic, therapeutic, and operative . t process of restoration is only held in abey-ance, neither advancing nor receding ; by andby it begins again, and then often proceedswith its wonted rapidity. Such cases arefrequently very trying to the surgeons pa-tience, but they generally turn out well in theend, provided sufficient care has been takento preserve the parts in their proper the ununited fracture, on the other hand,the process of consolidation is either com-pletely prevented, or, after having progressedfor some time, is at length permanently ar-rested. Under these circumstances, the ends of the fragments are gradually rounded off by absorption, and remain eitherentirely loose and disconnected, or they become adherent through the medium offibrous, ligamentous, or fibro-cartilaginous matter. Sometimes an adventitiousjoint is formed, as in fig. 355, provided with a more or less distinct synovialmembrane, thus permitting the ends of the bone to move upon each other withgreat facility. VOL. I.—56. Ununited fracture of the bones of the leg. 882 DISEASES AND INJURIES OF BONES. chap. viii. Want of reunion in a fracture may depend upon a great variety of causes,some of them resident in the parts themselves, others connected with the , it may be occasioned by the interposition of a clot of blood, or of a pieceof muscle, tendon, or bone. An instance is mentioned where the consolidationof a fracture was prevented by the presence of a musket ball. Fragility, soft-ening, and other affections of the bones are usually enumerated as circumstancesinterfering with the reparative process, but it is not improbable that their influ-ence has been greatly exaggerated; at all events, it is certain that in many casesof this kind, the fracture unites as readily as when the bones are perfectly much motion, the long-continued use of cold water, especially in persons ofa nervous, irritable temperament, a
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