. On modern methods of treating fractures . Fig. 134.—Bone-graft for fixation after excision of the knee. The graft hasbeen cut from the tibia and reversed, its small end being driven into the femur,and its larger end sutiired to the tibia. The same method may be used in unitinga fracture. ON UN-UNITED FRACTURES 275 fracture is not due to a special fault of the particular bone, butmerely to an eburnation of the fractured ends and a closing inof all the callus-producing Fig. 135.—The same ease as Fig. 134 nine months later, showingthe plastic union of the graft to its bed. But there ar
. On modern methods of treating fractures . Fig. 134.—Bone-graft for fixation after excision of the knee. The graft hasbeen cut from the tibia and reversed, its small end being driven into the femur,and its larger end sutiired to the tibia. The same method may be used in unitinga fracture. ON UN-UNITED FRACTURES 275 fracture is not due to a special fault of the particular bone, butmerely to an eburnation of the fractured ends and a closing inof all the callus-producing Fig. 135.—The same ease as Fig. 134 nine months later, showingthe plastic union of the graft to its bed. But there are some cases where there has been actual loss ofbone substance, due perhaps to necrosis, or to the destructive 276 MODERN METHODS OF TREATING FRACTURES results of gunfire. In these cases only should fresh bone betaken from elsewhere, and the anterior border of the tibia affordsthe best source of supply. If the humerus or femur is to be repaired, the new graft maybe driven into one fragment as a peg, and secured to the otherfragment as an inlay, in the manner shown in Figs. ISi, 135.
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