What is a talus fracture?
A talus fracture is a broken ankle bone. The talus is the bone in the back of the foot that connects the leg and the foot. It
joins with the two leg bones (tibia and fibula) to form the ankle joint and allows for upward and downward motion of the ankle.
What are the symptoms of a talus fracture?
Most patients present with pain and swelling about the ankle. They also experience severe ankle pain with an inability to walk due to bruising and swelling.
What causes a talus fracture?
Talus fractures are often the result of high-energy injuries. Falls from ladders and automobile accidents result in the most severe injuries. However, these fractures also may occur from twisting the ankle, which can result in small chips or fragments that are broken off the edges of the talus.
The talus (ankle bone) sits within the ankle "mortise" or hinge, which is made up of the two leg bones, the tibia and fibula. There are three joints: the ankle, which allows the up-and-down motion of the foot with the leg; the subtalar joint, which allows for side-to-side movement; and the talonavicular joint, which has a complicated biomechanical function that controls flexibility of the foot and the arch of the foot. The talus has no muscular attachments and is mostly covered with cartilage, which makes injuries difficult to heal.
How are talus fractures diagnosed?
In many cases the diagnosis can be made by your physician on physical examination alone. He or she will examine your foot for evidence of swelling or bruising about the ankle. X-rays are performed to help understand the extent of joint involvement and to show the location and size of bone fragments. Often times specialized X-ray, called a CT scan, is ordered to provide the physician with more information about the fracture. Due to the high energy that is commonly associated with these injuries, your physician may also examine you for other injuries involving the back, neck, head and other extremities.
What are treatment options?
Talus fractures may be treated in a cast or surgery may be recommended.
Non-surgical treatment is recommended for fractures in which the pieces of bones remain close together and the joint surfaces are well aligned. Patients who smoke or have diabetes or poor circulation may be treated without surgery due to the very high risk of developing complications if surgery is performed.
For a majority of patients, surgical treatment is the correct form of treatment. The goal of surgery is to restore the size
and shape of the talus. Sometimes this is a problem as the multiple fragments of bone are like putting together the pieces of a difficult puzzle.
If the bone has several large pieces, your orthopaedic foot and ankle surgeon may perform open reduction and internal fixation (ORIF). The procedure involves making a cut on the outside of your foot and placing a metal plate and/or screws to hold the bones together until healing occurs. The procedure allows for maximal recovery of the inward and outward motion of the foot.
How long is the recovery?
Recovery can be prolonged. No weight or walking on the leg will be allowed for eight to 12 weeks. Once the bone is healed, exercise and physical therapy is started to maximize the function of the ankle. You should expect some swelling about the foot for several months after the procedure.
This injury can be very debilitating with persistent pain, stiffness and swelling even after an excellent non-surgical or surgical treatment. However, most people, depending on the type and severity of the fracture, are able to return to most work and recreational activities.
Talus fractures are quite severe injuries and can lead to longstanding problems with the foot and ankle. There are early and late complications.
Early complications are most often related to the significant swelling that can occur after these injuries, which can cause wound problems and infection. People who smoke, diabetics and those with poor circulation are at greatest risk for these complications.
Late complications are typically related to the severity of the initial injury. Most people experience a certain degree of stiffness with the upward and downward motion of the ankle. When the blood supply to the talus is damaged it can lead to death of the bone, a condition called avascular necrosis (AVN). This condition can lead to significant deformity and arthritis and require additional surgery.
Frequently Asked Questions
How long will I be out of work?
This is a severe injury. Depending on the type of work performed, most people are unable to return to work for at least two weeks after the injury. Those with active jobs may not be able to return for six months to a year.
Do the plates and screws need to be removed?
Plates and screws hold the bones together so that they can heal. Once the bones are healed the hardware serves no purpose. However, most orthopaedic surgeons do not recommend removal of the plate and screws unless there are problems with pain or infection.
The American Orthopaedic Foot & Ankle Society (AOFAS) offers information on this site as an educational service. The content of FootCareMD, including text, images and graphics, is for informational purposes only. The content is not intended to substitute for professional medical advice, diagnoses or treatments. If you need medical advice, use the "Find an Orthopaedic Foot & Ankle Surgeon" tool at the top of this page or contact your primary doctor.