Which foot deformity is described as equinus and related to dorsiflexion lack?

Which foot deformity is described as equinus and related to dorsiflexion lack?

• A. Equinus foot deformity
• B. Vertical talus
• C. Claw toe
• D. Pes planus

Answer: (A)

Equinus describes a plantarflexed ankle with little to no dorsiflexion, so the foot rests pointed downward and cannot be brought toward neutral. This lack of dorsiflexion is what defines equinus, and it’s common in spina bifida/myelomeningocele due to neuromuscular imbalance and tight calf muscles. The other options describe different foot problems: vertical talus is a rigid deformity where the talus sits abnormally upright and the foot looks rocker-bottom; claw toe is a toe deformity from imbalance among toe flexors and extensors; pes planus is flatfoot from arch collapse, not an ankle plantarflexion contracture.

Equinus describes a plantarflexed ankle with little to no dorsiflexion, so the foot rests pointed downward and cannot be brought toward neutral. This lack of dorsiflexion is what defines equinus, and it’s common in spina bifida/myelomeningocele due to neuromuscular imbalance and tight calf muscles. The other options describe different foot problems: vertical talus is a rigid deformity where the talus sits abnormally upright and the foot looks rocker-bottom; claw toe is a toe deformity from imbalance among toe flexors and extensors; pes planus is flatfoot from arch collapse, not an ankle plantarflexion contracture.