A Radiographic Study of Biomechanical Relationship between the Achilles Tendon and Plantar Fascia

Figure 3

The Parallel patch lines were obtained by first drawing the inferior line from the inferior margin of the calcaneocuboid joint to the plantar tuberosity of the calcaneus. Then the superior line was drawn parallel to the inferior line beginning at the posterior margin of the subtalar joint. If the posterior calcaneal prominence was located above the superior line, it was considered abnormal and consistent with Haglund’s deformity.