Pes Cavus
Pronunciation: PEEZ KAY-vus
A foot deformity characterised by an abnormally high medial longitudinal arch, often associated with neurological conditions.
Full Definition
Pes cavus is the opposite of pes planus, presenting with an exaggerated medial longitudinal arch that reduces the plantar contact area and can lead to lateral ankle instability, metatarsalgia, and claw toe deformities. It is frequently associated with neurological conditions such as Charcot–Marie–Tooth disease and may be idiopathic. Orthotic management focuses on distributing pressure across a larger plantar surface area. In editorial contexts, pes cavus must not be confused with pes planus; a document that contradictorily describes a 'high arch' while diagnosing pes planus should be queried. The ICD-10-CM classification provides distinct codes for acquired and congenital forms.
Usage
Usage note: Always specify whether pes cavus is acquired or congenital when the distinction is clinically documented. Do not confuse with the broader term 'claw foot,' which may describe toe deformity rather than arch morphology.
In Context
- "The orthotic prescription for pes cavus specified a deep heel cup and metatarsal pad to redistribute plantar pressure." — Orthotic prescription
- "The editor flagged a discrepancy: the body of the report described a high arch, but the diagnosis field read 'pes planus,' which should have read 'pes cavus.'" — Proofreading note