The tibia is paired with a shorter leg bone called the fibula, and they’re connected with an interosseous membrane. This membrane is a sheet of connective tissue that acts as a type of joint.

Now, what are tibia and fibula fractures? Well, the tibia is the large shin bone that connects the knee to the ankle. And the fibula, or calf bone, is the smaller bone next to it. So Hutchinson ...

Your tibia and fibula are the bones of your shin and calf. The talus bone is small, only about two inches long in the case of adults. It doesn’t connect to any muscles.

The base of the fibula forms part of the outer ankle. At the base, the fibula attaches to the tibia, one of the ankle bones called the talus, and the calcaneus, also known as the heel bone.

The fibula is one of two long bones of the lower leg, along with the tibia, or shin bone. The fibula forms the top of the ankle and reaches to the back of the knee.