![]() Sometimes these fractures can occur in lower-force impacts due to osteoporosis, which causes the weakening of your bones.įor any unstable fracture (ie the bone has been displaced), surgery will usually be necessary to reposition the bone. Like bimalleolar and trimalleolar fractures, these fractures are caused by a high energy impact, for example a car accident, a fall from height or a skiing accident.īimalleolar, trimalleolar and tibia-only fractures should be reviewed immediately with an x-ray, and usually require a cast to stabilise the joint as the bone heals. The tibia (shin bone) can break in one place or shatter in a number of places at the ankle joint. As with bimalleolar ankle fractures, they are the result of an extremely high-energy impact. With these fractures, the back of the tibia / shinbone is also broken off. These are the most severe of ankle fractures and have a poor prognosis. In addition to the force of impact, there is often a significant force of rotation on the ankle, which can lead to serious ligament damage. They’re usually the result of high impact injuries such as falls and road traffic collisions. Most bimalleolar ankle fractures are serious injuries. The second most common type of ankle fracture is a break of both the fibula on the outside of the ankle, and the base of the tibia (shin bone), on the inside of your ankle. These unstable fractures usually require surgery to repair the joint. If you have suffered a high impact such as a car accident or a serious fall, the broken fibula might get displaced – sometimes breaking the skin. The stress can cause a fracture in the fibula or even tear a chunk of the bone away (avulsion fracture).įibula fractures can also occur as a result of repetitive stress from activities such as running or hiking. When you roll over on your ankle or twist it sharply, the ligaments get stretched and pull on the bone. The fibula (calf bone) attaches to the outside of the ankle with three strong, fibrous ligaments. These fractures are very common in sports, especially those that involve running, jumping, quick changes of direction or high-impact contact – such as football, basketball or rugby. It is the most common type of ankle fracture. It can get broken if you twist your ankle forcefully, land on it badly, or through an impact on your outer leg. The base of the fibula (the lateral malleolus) forms the bony lump on the outside of your ankle. Different types of ankle fractures Fibula Only Fracture (lateral malleolus fracture) ![]() This kind of fracture can involve the ligaments that hold the joint together, the joint surfaces themselves, or a combination of both. ![]() Unstable ankle fracture: the stability or structure of the ankle joint is affected by the break. Stable fracture: although a bone is broken, the ankle joint itself remains well positioned and stable – theses are normally managed with a walking cast or boot. Your ankle joint is made up of three bones – the talus, the tibia (the large shin bone) and the fibula (the slim calf bone that connects to the outside of your ankle joint). Depending on the type of fracture, this can lead to complications in the healing process.įor this reason, it’s good to know the different types of broken ankle and what impact they can have on your recovery and long-term ankle stability. In many cases, people who have broken their ankle don’t get an x-ray for some days or weeks. If you have injured your ankle – particularly if it feels like a simple sprain – it is tempting to try to carry on walking on it, once the pain subsides. They range from small, hairline fractures to complex breaks involving a number of bones. Millions of people break their ankles every year, but not all ankle fractures are the same.
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