. A practical treatise on fractures and dislocations. erfere with the subsetpient growth o^ the bi>no :the layer of cartilage may remain unossified and perform its functions5 66 FRACTURES. as before; but it is known from the results of experiments upon ani-mals, and from cases of inflammatory disease and from some of trau-matic separation without displacement, that the effect of irritation ofthe epiphyseal cartilage is sometimes to hasten its ossification, and thusarrest the growth of the limb. This last result must certainly be pro-duced when the epiphysis is dislocated by the fracture and
. A practical treatise on fractures and dislocations. erfere with the subsetpient growth o^ the bi>no :the layer of cartilage may remain unossified and perform its functions5 66 FRACTURES. as before; but it is known from the results of experiments upon ani-mals, and from cases of inflammatory disease and from some of trau-matic separation without displacement, that the effect of irritation ofthe epiphyseal cartilage is sometimes to hasten its ossification, and thusarrest the growth of the limb. This last result must certainly be pro-duced when the epiphysis is dislocated by the fracture and is notrestored to its place. Finally, failure of union after fracture may be due to arrest of thereparative process in the granulation stage, ossification not takingplace and the bond between the fragments remaining fibrous, or to thewide separation of the fragments, or to the interposition of a bundleof muscular tissue, or to the insufficiency of the blood-supply of oneof the fragments. This condition, especially as seen after fracture of Fig. Fracture of the olecranon : fibrous union. (Malgaigne.) the shaft of a long bone, is considered in detail in Chapter YIIT.,Pseudarthrosis. Examples at other points than the shaft are furnishedespecially by the patella and olecranon (direct longitudinal separation),and by some fractures of the neck of the femur where the cause liesin an excess of the rarefying process, by w^hich the neck is destroyed,or in the cutting off of the blood-supply by complete rupture of theperiosteum of the neck which carries vessels to the head. Clinical Course. This varies with the position and character of the fracture and espe-cially with the complications arising from the peculiarties of thefracture and the health and age of the patient. Ordinarily, in simplecases, after the primary reaction of the injury has subsided and anappropriate treatment has been established, the patient goes on torecovery without pain, fever, or other disturbance of his gene
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfractur, bookyear1912
