In congenital convex pes planovalgus, what is the typical position of the calcaneus?

• A. Inverted
• B. Everted
• C. Neutral
• D. Adducted

Answer: (B)

In congenital convex pes planovalgus, the typical position of the calcaneus is everted. This condition is characterized by a flatfoot deformity where the arch is notably diminished or absent, and the forefoot is often displaced laterally. Eversion of the calcaneus is an important aspect of this deformity because it indicates a misalignment in the subtalar joint and an abnormal loading pattern of the foot.

In this condition, the everted calcaneus can contribute to a compensatory mechanism that helps stabilize the foot in a weight-bearing position, although it ultimately leads to functional issues and potential pain over time. The overall alignment of the foot, including the position of the calcaneus, is crucial when assessing the severity and implications of the deformity.

The other choices, such as inverted, neutral, and adducted, do not accurately represent the deviations associated with congenital convex pes planovalgus. The calcaneus being adducted, for instance, would not align with the lateral displacement commonly seen in this condition, and a neutral position would imply a normal alignment that contradicts the flatfoot characteristic. Therefore, understanding the everted position of the calcaneus is key in diagnosing and managing this congenital foot