Forefoot Invertus / Inverted Forefoot

When the subtalar joint is maintained in its defined neutral position, the forefoot should be perpendicular to a bisection of the posterior aspect of the calcaneus. If the forefoot is inverted relative to the rearfoot, then a forefoot varus or forefoot supinatus or dorsiflexed first ray is considered as being present.

Invertus - UK term

See: Forefoot varus | Forefoot Supinatus | Dorseiflexed First Ray (Metatarsus primus elevatus)