Final answer:
A fracture of the fibular shaft alone is often termed an isolated fibular shaft fracture or a simple fibula fracture. The fibula is a non-weight-bearing bone on the lateral side of the leg, important for muscle attachments and leg stability.
Step-by-step explanation:
A fracture of only the fibular shaft is often termed a isolated fibular shaft fracture or a simple fibula fracture. The fibula is the slender bone located on the lateral side of the leg and does not bear weight, serving primarily for muscle attachments. The shaft of the fibula is the elongated, slender portion located between the expanded ends of the bone. Although the fibula is non-weight-bearing, fractures to this bone can still greatly affect leg stability and function.
The interosseous membrane plays an important role in leg anatomy, as it joins the fibula and tibia along the length of the bones, providing added stability to the lower leg. Syndesmotic injuries, such as 'high ankle sprains,' are different from simple fractures and involve damage to the connective tissue joining the distal ends of the tibia and fibula at the distal tibiofibular joint.