The fibula helps stabilize and support your leg, body, ankle, and leg muscles. It runs parallel to the tibia, a larger bone that also forms the shin, and attaches the ankle and knee joint. The fibula ...

The fibula is the longest, thinnest calf bone in your lower leg. Of your two lower leg bones, your fibula is closest to the outside of your body. When you break this bone, it's called a fibular ...

An avulsion fracture happens when a tendon or ligament pulls a small fragment of bone from the main bone. These fractures usually occur near joints, such as in the fingers, hips, feet, and ankles.