ABSTRACT
Positioning for antero-posterior projection of the femur. https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781315382210/8ca82e7c-bd07-4171-b4f5-ebaded57b5b3/content/fig2_26a.jpg" xmlns:xlink="https://www.w3.org/1999/xlink"/>
The patient lies supine on the X-ray table, with both legs extended and the affected limb positioned on the centre line of the table.
The affected limb is rotated to centralise the patella over the femur.
Sandbags are placed below the knee to help maintain the position.
The image receptor/Bucky mechanism is located directly under the posterior aspect of the thigh to include both the hip and the knee joints.
Alternatively, a CR cassette or mobile DDR detector is positioned directly under the limb against the posterior aspect of the thigh, to include the knee and hip joints.
