A Consideration About the Rotational Displacement of the Femoral Head in Intracapsular Femoral Neck Fractures

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An experimental study was performed on the rotational displacement of the femoral head in intracapsular femoral neck fractures. The changing trabecular pattern in accordance with the degree of rotation was observed roentgenographically, using the rotation of an excised femoral head. When the degree of rotation was below 45 degrees, axial view was prefered and when it was above 45 degrees, antero-posterior view was prefered.Clinical study was done by using the above criteria. It became apparent that higher degree of displacement was seen on axial view in cases of Garden stage II, over 50 degrees of rotational displacement was present in cases of Garden stage III, and that rotational displacement was almost none in cases of Garden stage IV and over traction might be induced when traction had been performed. These findings may be useful as the markers of classification of the fracture.
西日本整形・災害外科学会の論文