ABSTRACT

Positioning for antero-posterior projection of tibia and fibula. https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781315382210/8ca82e7c-bd07-4171-b4f5-ebaded57b5b3/content/fig2_84a.jpg" xmlns:xlink="https://www.w3.org/1999/xlink"/>

The receptor chosen should be large enough to accommodate the entire length of the tibia and fibula. This may require the leg to be positioned diagonally across the receptor to ensure the knee joint and ankle mortise are visualised on the image.

The patient is either supine or seated on the X-ray table, with both legs extended.

The ankle is supported in dorsiflexion by a firm 90-degree pad placed against the plantar aspect of the foot. The limb is rotated medially until the medial and lateral malleoli are equidistant from the receptor.

The lower edge of the receptor is positioned just below the plantar aspect of the heel.