What is the appropriate leg position for a lateral projection of the proximal femur?

For a lateral projection of the proximal femur, the appropriate leg position involves flexing the knee and having the superior leg rest on the inferior leg. This positioning is essential because it helps separate the femoral structures and reduce superimposition, enabling clearer imaging of the proximal femur and hip joint. When the knee is flexed, it allows the acetabulum and femoral neck to be better visualized, which is crucial for accurate diagnosis and assessment of pathology in this region.

Positioning the legs in this manner stabilizes the patient while providing a lateral view of the femur, which is essential for evaluating fractures, dislocations, or other conditions affecting the proximal femur and hip joint. Other leg positions do not achieve the same separation and clarity needed for an effective lateral view.