Femur Study

AP Projection

1. Patient in supine position;
2. Medial rotation of 15º.

Central ray perpendicular to the middle of the femur.

Note: To study the distal femur it is necessary to include the knee joint and in study of proximal femur it is necessary to include the hip joint.

Evaluation Criteria:

• In study of distal femur it is necessary to see no rotation in the knee joint;
• In study of the proximal femur it is necessary to see the lesser trochanter in medial border and greater trochanter in profile;
• Appropriate exposure values (visualization of the all bony trabeculation and soft tissue).

                Proximal Fémur

                Distal Fémur

Lateral Projection

1.  Patient turn to the affected side;
2. For the study of distal femur flex the knee 30º;
3. For the study of the proximal femur it is necessary to flex the knee 45º and rotate 5º for the lateral position.

Central ray perpendicular to the middle of the femur.

Proximal Fémur

Distal Fémur

Evaluation Criteria:

• In study of distal femur:
• Patella in profile;
• Patellofemural joint open;
• In study of proximal femur:
• Greater and lesser trochanters not proeminent;
• Appropriate exposure values (visualization of the all bony trabeculation and soft tissue).

                                                           Proximal Fémur

Distal Fémur