It should be noted that when standing with the hindfoot in pronation and the forefoot in supination, the medial metatarsals assume a position closer to dorsiflexion.79 Because the joint axis of the first metatarsal is obliquely oriented (from anterolateral to posteromedial), dorsiflexion of the first metatarsal involves a component of abduction away from the midline of the foot. Therefore, in a pronated foot, the first metatarsal is usually positioned in varus. On the other hand, in a person with metatarsus primus varus, a condition in which the first metatarsal deviates into varus position, the foot will tend to assume a pronated position. This is because for the first metatarsal to be in a varus angle, it must also be in some dorsiflexion. This causes supination of the forefoot, which necessitates pronation of the hindfoot for the person to stand with the metatarsal head and calcaneus in contact with theground.