. Atlas and epitome of traumatic . Fig. 2 a Man die n. FRACTURES OF THE LOWER EXTREMITY. 257 To preserve the anatomic names, we might divide frac-tures of the neck of the femur into median or proximal,and lateral or distal, fractures. Median fractures of the neck of the femur occupy themedian segment of the neck of the femur, near the marginof the head, and are almost always intracapsular. Thefragments consist of the shaft and neck, on the one hand,and the head, on the other. The head loses that part ofits arterial blood-supply which is conveyed by the perios-teum

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. Atlas and epitome of traumatic . Fig. 2 a Man die n. FRACTURES OF THE LOWER EXTREMITY. 257 To preserve the anatomic names, we might divide frac-tures of the neck of the femur into median or proximal,and lateral or distal, fractures. Median fractures of the neck of the femur occupy themedian segment of the neck of the femur, near the marginof the head, and are almost always intracapsular. Thefragments consist of the shaft and neck, on the one hand,and the head, on the other. The head loses that part ofits arterial blood-supply which is conveyed by the perios-teum and by way of the neck. The circulation throughthe ligamentum teres, in old persons especially, is head may be cut off from all nutrition, like a com-pletely separated fragment, and may succumb to retrogres-sive changes analogous to those that occur in the formationof a traumatic joint-mouse. The lateral fractures occupy the lateral portion of theneck of the femur near the trochanters. They may beextracapsular, but as a rule the

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