FEET – BUNION
Bunions are thought to develop because we squeeze our feet into shoes which are too narrow for the forefoot. Coupled with this may be an inherited tendency for the first metatarsal or long bone of the foot to splay medially or inwards.
The first deformity is a hallux valgus. The joint of the great toe (hallux) is forced laterally, or outward, so that the toe turns inward, crowding the other toes.
An exostosis, or bony projection, develops on the medial or inner side of the head of the metatarsal, where it forms the big toe joint.
The bunion is a small bursa or fluid sac which forms on the medial side of the joint over the projecting bone. It may become inflamed or infected. The second toe gets crowded out and may over or under-ride the first toe.
A foot with all these deformities doesn’t look good but may not, at first, be painful. Doctors are reluctant to operate for cosmetic reasons only and usually wait until the person is inconvenienced by progressing pain.
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