vertical talus
A rare congenital foot deformity where the talus is vertically oriented, creating a rigid flatfoot with a rocker-bottom appearance.
Full Definition
Vertical talus is a severe congenital foot deformity characterized by fixed dorsal dislocation of the navicular on the talus, resulting in a rigid flatfoot with a characteristic rocker-bottom sole. The condition may be isolated or associated with neuromuscular disorders or genetic syndromes. Unlike flexible flatfoot, the deformity is rigid and does not correct with passive manipulation. Treatment typically requires surgical intervention to relocate the talonavicular joint and restore normal foot architecture.
Usage
Usage note: Emphasize 'rigid' nature to distinguish from flexible flatfoot conditions; often requires complex surgical reconstruction.
In Context
- "The newborn's rigid rocker-bottom foot deformity was diagnosed as congenital vertical talus on lateral radiographs." — Neonatal assessment
- "Surgical correction of vertical talus involved talonavicular reduction and extensive soft tissue releases." — Operative report