Procedures used for measurement. (A) We classified the point of the upper edge of the second incision as point “a,” which can be changed according to different height levels for transfer. The distal tip of the tendon was classified as point “b.” The midpoints of the intermediate cuneiform, the lateral cuneiform, and the cuboid were defined as points “c,” “d,” and “e,” respectively. PTT was re-routed to reach the midpoints of the (A) intermediate cuneiform, (B) the lateral cuneiform, and (C) the cuboid by applying tension to some extent. During this procedure, the limb was kept in a neutral position.