ABSTRACT
Positioning for‘frog’s legs’ lateral projection. https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781315382210/8ca82e7c-bd07-4171-b4f5-ebaded57b5b3/content/fig2_43a.jpg" xmlns:xlink="https://www.w3.org/1999/xlink"/>
To avoid rotation of the pelvis, the patient lies supine on the X-ray table with the anterior superior iliac spines equidistant from the table top.
The median sagittal plane is perpendicular to the table and coincident with the centre of the table Bucky mechanism.
The hips and knees are flexed and both limbs rotated laterally through approximately 60 degrees. This movement separates the knees and brings the plantar aspects of the feet in contact with each other.
The limbs are supported in this position by pads and sandbags.
The image receptor is centred at the level of the femoral pulse so that it includes both hip joints.
