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Sixteen injected specimens of human femoral heads and necks, in which a nail or screw had been inserted, were examined. 2. The possibility exists that the fixing agent may interfere with the blood supply of the femoral head. The likelihood of this occurrence is not great. 3. The position of the fixing agent in which vascular damage is least likely is the central area or "neutral zone" of the femoral neck and head.
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A Brodetti (1960) studied this question.
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