Reconstruction of the left femoral head, orthogonal projection views of the arterial network and 3‐D reconstruction of the intraosseous vascular of the left femoral head. The superior retinacular artery (SRA), the inferior retinacular artery (IRA) and the anterior retinacular artery (ARA) anastomoses within femoral head are shown. A 3‐D reconstruction of the left femoral head andits arterial networks: medial‐sagittal views of the left femoral head (A), medial‐sagittal view of the left intraosseous arteries (B), front view (C), and lateral view (D).