Evaluation of the plantar hindfoot to assess the plantar fascia. (a) The probe and patient are positioned to evaluate the plantar fascia on a long-axis scan. (b) Anatomical scheme of the plantar fascia as seen along its long axis, C calcaneus. (c) US long-axis scan of the medial branch of the plantar fascia, F fat pad, arrowheads medial branch of the plantar fascia, circles enthesis of the plantar fascia, partially affected by anisotropy artifacts