A pilon fracture is a type of break of the shinbone (tibia) that occurs near the ankle.
In most cases, it includes breaks in both the tibia and fibula of the lower leg. The lower ends of these bones make up part of the ankle.
What causes pilon fracture of the ankle?
A high-energy impact most often causes a pilon fracture. Common causes include:
A fall from high up
Motor vehicle accident
The force from the impact often drives one of the foot bones (talus) into the tibia. The tibia and often the fibula break. Other injuries may also happen during the impact.
Symptoms of pilon fracture of the ankle
A pilon fracture can cause symptoms such as:
Swelling of the leg and ankle
Bruising of the leg and ankle
Severe pain to the touch
Inability to put weight on your foot
Having an ankle that looks crooked
Diagnosing pilon fracture of the ankle
Your doctor will ask about your symptoms and your health history. You’ll have a physical exam to check for other injuries. Your doctor will carefully check your lower leg and ankle. Your doctor may push on different areas to see if they hurt to the touch. He or she will also look for swelling and will make sure blood is flowing normally to your foot and ankle.
You will likely need X-rays of your leg, ankle, and foot to check for broken bones. You may also need a CT scan to check your injury in more detail.
Treatment for pilon fracture of the ankle
If the bones of your tibia still line up correctly, you have treatments such as:
If the bones of your pilon fracture are out of place, you will likely need surgery. Your surgery may wait until the swelling has gone down. While you wait, you may need to have a splint.
During surgery, the bones are lined up correctly. They may also be held in place with special plates and screws. This is called internal fixation. The plates and screws may be removed weeks or months later. After your leg has healed a bit, you will start physical therapy exercises. You may have a removable brace or splint. This can be taken off during physical therapy. The exercises will help build up strength and increase your range of motion. You’ll also need to use crutches or a cane for several months after your injury.
Follow all of your doctor’s instructions carefully. Your doctor may tell you to:
Take prescription medicine (blood thinner) to prevent blood clots
Not take certain over-the-counter medicines for pain that may interfere with bone healing
Eat foods high in calcium and vitamin D to help with bone healing
Not smoke, because it can delay bone healing
Possible complications of pilon fracture of the ankle
Possible complications from a pilon fracture can include:
Stiffness in your joint, which physical therapy may help
Ankle arthritis that causes chronic ankle pain
Infection, which may need treatment with antibiotics or follow-up surgery
A bone that does not heal properly, which may need follow-up surgery
Pain from the plates and screws used in your surgery
Problems with wound healing
Blood vessel or nerve damage from the pilon fracture
When to call the health care provider
Call your health care provider right away if you have any of these:
Fever of 100.4°F (38°C) or higher
Redness, swelling, or fluid leaking from your incision that gets worse
Pain that gets worse
Numbness in your leg