Metatarsus varus (adductus) is one of the most common foot deformities, that is defined as a transverse plane deformity in Lisfranc's (tarsometatarsal) joints in which the metatarsals are deviated medially. The relationship between talus and calcaneus is normal. On inspection the toes angle abruptly towards the midline, creating a C-shaped lateral foot border with a prominent styloid process of the 5th metatarsal. The result is that the forefoot is twisted inwards relative to the heel, so that the sole faces the midline.