Area of the femoral neck formed by the intersection of 3 bundles of trabeculae

• primary compressive trabeculae medially
• primary tensile and secondary compressive trabeculae laterally

• It is an area of low bone density
• Contains thin, loosely packed trabeculae
• Seen in x-rays as a radiolucent area

1. Trabecular pattern of proximal femur
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