Ultrasound: a helpful technique in the analysis of congenital vertical talus. A case report.

Congenital vertical talus is a rare condition. In newborns, the diagnosis is evident in severe forms, but it can be difficult to confirm in mild ones. Non-ossified tarsal navicular cannot be visualized on standard roentgenograms until it is ossified. This work demonstrates that ultrasound is helpful in the early diagnosis of congenital vertical talus and in the evaluation of the therapeutic concept and effects.