The tibia and fibula are the 2 bones of your lower leg. The tibia is your shinbone.
It’s the larger bone. The fibula is the smaller bone that sits next to the tibia.
The top of the tibia forms part of the knee joint. The bottom of both the tibia and
the fibula form the upper part of the ankle joint.
An injury may break (fracture) your
tibia, your fibula, or both into 2 or more pieces. This might happen near your knee,
the middle of your shin, or near your ankle. A fracture near your ankle may be called
broken ankle. You may have a fracture in 1 or both of the bones. A bone may break
the pieces are still lined up correctly. Or the pieces may not line up correctly.
is called a displaced fracture.
A broken tibia or fibula can happen from a car or bicycle accident, contact sports,
a fall, or activities with movements that you do over and over again. Older adults
with low bone density (osteoporosis) are more at risk for breaks in these bones.