Fig. 2.

CVT associated with chromosomal abnormality in chromosome 8. a Initial talar axis–first metatarsal base angle (TAMBA) was 82° at first presentation, age 9 months. b Plantarflexion radiograph at first presentation with TAMBA of 36°. The TAMBA difference between neutral position and in plantarflexion as a sign for the mobility in the talonavicular complex was 46°. c At the age of 3.5 years, complete correction with TAMBA 7°, following minimally invasive treatment, casting, closed reduction of the talonavicular joint with temporary percutaneous K-wire fixation and percutaneous tenotomy of the Achilles tendon