Dynamic U.S examination of the AITFL. In order to stress the lower syndesmotic joint into an External Rotation position the examiner is holding the foot and moving it towards external rotation and slight dorsiflexion of the ankle (see arrows). As in this diagram when the examination is performed by a single U.S operator the patient is asked to gently press his heel towards the bed to stabilize the ankle for stress maneuvers. The anatomy of the AITFL is also seen.
Mei-Dan et al. BMC Sports Science, Medicine and Rehabilitation 2013 5:9 doi:10.1186/2052-1847-5-9