The tibia is longer than the fibula and the tibia forms part of the knee at it's top also known as proximal end and your ankle at it's lower or distal end.
Your tibia and fibula are two of the bones which form the lower leg.
The fibula is not part of the knee joint and does not articulate with your knees joints and plays no role in the knee.
However a hinge joint of the knee allows your legs to flex and extend without any need for rotation or medial lateral movement.
The fibula is located on both the right and the left side and is located in your legs.
Your fibulas are located on the lateral outside of the tibia and slightly posterior to the back and also offsets a little below.
And the proximal top end of the fibula is articulated with the lateral condyle of your tibia and just below your knee.
That is called your proximal tibiofibular joint.
The fibula is the outer and usually smaller of the two bones that are between your knee and your ankle.
Your fibula is not weight bearing (it doesn't support your body when you stand or move), so some people can walk with a tibia fracture.
However, you shouldn't ignore pain or other symptoms in your leg.
Even if you can move or walk, you should get your injury examined by your doctor or in the ER right away.
Most fractured fibulas typically heal with no further problems, but the following complications are possible which include.
Degenerative or traumatic arthritis.
Abnormal deformity or permanent disability of the ankle.
Long-term pain.
The fibula helps stabilize the tibia but doesn't carry much weight.
Although the tibia and fibula can break independently from each other, because they are so close together it is more common for both bones to break together.