Clubfoot

  • Etiology: Congenital
  • Imaging: 4 elements:
    — Hindfoot equinus: Lateral talocalcaneal angle <35º — Hindfoot varus: Talocalcaneal angle <20º — Metatarsus adductus: Adduction and varus deformity of the forefoot; talus to first metatarsal (Meary’s) angle >15º
    — Talonavicular subluxation: medial subluxation of the navicular on the talus
  • Imaging Radiograph AP: Overlap of talus and calcaneus, varus angulation of forefoot (metatarsus adductus), inversion of foot
  • Imaging Radiograph Lateral: Parallel alignment of talus and calcaneus and equinus (upward) position of calcaneus
  • DDX:
  • Complications:
  • Treatment:
  • Clinical: CAVE – Cavus (high arched foot), forefoot Adductus, hindfoot Varus and Equinus

Radiology Cases of Clubfoot

Radiograph of club foot
Radiograph of the feet shows varus angulation of the left forefoot. There is a dysplastic appearing medial cuneiform bone with associated widening at the first tarsal-metatarsal joint.
Radiograph of feet in diastrophic dysplasia
AP radiograph of the feet (above) shows irregular deformity and shortening of the metatarsal bones. Crescent-shaped flattened epiphyses are present. Forefoot varus, hindfoot varus and hindfoot equinus (below) are also present.