From the case:
Femoral head blood supply
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Illustrations of the femoral head blood supply.
The deep femoral artery is commonly referred to as profunda femoris artery (Latin).
Case Discussion
Most of the femoral head blood supply is done by the extracapsular arterial ring, which is formed by the lateral femoral circumflex and the medial femoral circumflex arteries.
The femoral circumflex arteries arise from the deep femoral artery. Between them, the medial femoral circumflex artery supplies most of the blood to the head of the femur.
In cases of trauma proximal to the extracapsular arterial ring, such as femoral neck fractures, there is a considerable chance of avascular necrosis of the femoral head due to disruption of proper blood supply.
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