Sitting, standing, lying supine or lying prone
Ask the patient to remove shoes and socks to allow direct palpation on the skin.
Lateral or posterior to the patient.
Please sit (or other position). May I touch the inside of your foot? (or demonstrate).
Guide the patient to sit (or other position). If given permission, place your thumb on the plantar and medial aspect of the calcaneus. With gentle pressure, slide your thumb dorsally until you feel the ledge forming the sustentaculum tali. This is the ledge that supports the talus, hence the name sustentaculum (sustainer or support) tali (talus).
VH - Tibia, fibula and foot skeleton showing the medial side of the calcaneusñ add the flexor hallucis longus on one side