Patient Positioning
Patient lies supine with a small pillow under the dorsal aspect of the ankle or legs in “frog-like” position. The ankle is lying on its lateral aspect. The dorsal part of the deltoid ligament is best examined with foot in dorsiflexion, the anterior part better in neutral position.
Probe Positioning
Place the transducer with its upper edge over the distal medial malleolus and rotate it to first posteriorly (tibiotalar), then parallel to the medial malleolus (tibiocalcanear) and anteriorly (tibionavicular).
PT: posterior tibial tendon
PT: posterior tibial tendon
Note: The posterior part is best examined by dorsiflexion of the foot, the anterior part in neutral position. The spring ligament (= plantar calcaneonavicular ligament) connects the anterior margin of the sustentaculum tali of the calcaneus to the plantar surface of the navicular, which can be examined, too.
