Fig. 1

Schematic view of how data were collected from our subjects. Surgeon or radiologist is first shown the clinical details of the patient and then the lateral radiograph. They were asked to provide a management and/or follow-up imaging plan based on the XR. Afterwards, they were shown the antero-posterior radiograph and asked if they would like to change their advice. Any changes in the advice were recorded. Hx = history, see text for clarification