They are condyloid joints meaning an elliptical or rounded surface (of the metatarsal bones) come close to the shallow cavities (of the proximal phalanges).
This pad helps to splay the metatarsal bones and create more space for the nerve so as to relieve pressure and irritation.
He injured the third metatarsal of his right foot and was out for two months.
She (9 yr old girl) underwent curettage through a small oval corticotomy window on the first metatarsal bone.
It generally develops in the second metatarsal, but can occur in any metatarsal.
The base articulates behind, by a triangular surface cut obliquely in a transverse direction, with the cuboid; and medially, with the fourth metatarsal.
It also commonly features a varus (inverted) hindfoot, a plantarflexed position of the first metatarsal, an adducted forefoot, and dorsal contracture of the toes.
This is because the first metatarsal, behind the big toe, is short compared to the second metatarsal, next to it.
