Fig. 1.

Sgarlato’s metatarsus adductus angle measurement method: Line A extends between the most lateral point of the fourth metatarso-cuboid and the calcaneo-cuboid joints. Line B extends between the most medial point of the talo-navicular and the medial cuneiform-first metatarsal joints. Line C extends between midpoints of lines A and B. Line D represents the longitudinal axis of the second metatarsal bone. Line E is perpendicular to line C and represents the longitudinal axis of the lesser tarsus. Sgarlato's angle is between the lines D and E.