pes cavus

Pes cavus refers to a descriptive term for a type of foot deformity with an abnormally high longitudinal arch of the foot (caved-in foot).

It is often associated with certain neuromuscular disorders such as:

• Charcot-Marie-Tooth disease: considered one of the commonest associations in the western world
• conditions that cause spastic paralysis
• spinal anomalies
  • spinal dysraphisms
  • spina bifida

Radiographic features

Plain radiograph

The lateral view is key to assessment, as the dorsoplantar view can sometimes appear normal, unless there an associated abnormality .

On a lateral view there is:

• an increase in the calcaneal inclination angle ≥30°
• angle of the longitudinal arch <150°
• the mid-talar axis either extends above the 1 metatarsal or intersects the shaft distal to its midpoint
• Hibb's angle <150°

Siehe auch:

• Spina bifida
• Plattfuß
• Morbus Charcot-Marie-Tooth
• Knickfuß
• Spreizfuß
• Spitzfuß
• Dysrhaphie