Metatarsus adductus is a foot deformity. The bones in the middle of the foot bend in toward the body. Metatarsus adductus is thought to occur as a result of the infant's position inside the uterus. This is a relatively common disease affecting about one out of every 1,000 to 2,000 live births. Risk factors may include a condition called oligohydramnios in which the mother does not produce enough amniotic fluid in the uterus.
- The front of the foot is bent inward (toward the midline) at the instep.
- The back of the foot and the ankles are normal. With a clubfoot, which is a different deformity, the foot will be pointed down and the ankle turned in as well.
Metatarsalgia - Metatarsalgia (literally metatarsal pain, colloquially known as stone bruise) is a general term used to refer to any painful foot condition affecting the metatarsal region of the foot. This is a common problem that can affect the joints and bones of the metatarsals. Metatarsalgia is most often localized to the the first metatarsal head (the ball of the foot just behind the big toe). There are two small sesamoid bones under the first metatarsal head. The next most frequent site of metatarsal head pain is under the second metatarsal. This can be due to either too short a first metatarsal bone or to "hypermobility of the first ray" (metatarsal bone + medial cuneiform bone behind it), both of which result in excess pressure being transmitted into the second metatarsal head.
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