| 摘要 |
A surgical appliance for stabilizing a fractured thighbone is shown having a femoral nail for insertion in the medullary canal and a crosspiece supported at one end in a slot that extends longitudinally lengthwise in the femoral nail, the other end of the crosspiece being bedded in the femoral head. The crosspiece is formed as a flat, spirally shaped element that slides through the slot in the femoral nail when it is seated in the medullary canal and the fracture has been reduced, the leading end of the crosspiece being driven through the neck and into the femoral head. The assembled nail and crosspiece arrangement provides a rigid elongated cross sectional area of the crosspiece supported in the slot in the femoral nail and a flat leading end that serves as a bearing surface in the femoral head that is turned at about a right angle with respect to the slot in the nail whereby to minimize cutting out of the leading end of the crosspiece through the wall of the femoral head. The crosspiece and the femoral nail may both be cannulated to simplify the process of insertion and the femoral nail may be curved slightly to match the normal anterior bow of the thighbone.
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