Ankle Sprain (cont.)
IN THIS ARTICLE
Ankle sprains occur when ligaments that connect the bones in the foot, ankle, and lower leg stretch or tear.
An inversion injury, the most common cause of ankle sprains, occurs when the ankle rolls outward and the foot turns inward. It results in stretching and tearing of the ligaments on the outside of the ankle.
In an eversion injury, the ankle rolls inward and the foot turns outward, damaging the ligaments at the inside of the ankle.
In a "high" ankle sprain, a less common type of injury, ligaments that join the two lower leg bones together above the ankle, called the syndesmosis, are injured. This usually happens if the foot is forced up, or if the leg is forcefully twisted while the foot is planted. This injury can occur either by itself or with an inversion or eversion sprain. If the ligaments of the syndesmosis are injured, the sprain is more severe and takes longer to heal.
See a picture of types of ankle sprains.
Damage to the ligament varies from simply stretched or slightly torn to completely torn. Your doctor will grade your sprain accordingly.
eMedicineHealth Medical Reference from Healthwise
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