Fibula

The fibula is one of the two long bones located in the lower leg of dogs, alongside the tibia. It runs parallel to the tibia and is situated on the lateral (outer) side of the leg. While the tibia bears the majority of the weight of the body and serves as the primary weight-bearing bone in the lower leg, the fibula provides additional support and stability to the leg.

In dogs, the fibula is thinner and less weight-bearing than the tibia. It contributes to the overall structure of the lower leg and assists in stabilizing the ankle joint (tibiotarsal joint). Despite its smaller size and lesser weight-bearing role compared to the tibia, the fibula plays an important role in providing attachment sites for muscles, tendons, and ligaments that contribute to movement and stability of the hind limb.

Injuries to the fibula in dogs are less common than injuries to the tibia but can occur as a result of trauma, such as fractures or dislocations. Treatment for fibular injuries typically involves rest, immobilization of the affected limb, and in some cases, surgical intervention to realign and stabilize the bone for proper healing.

Overall, while the fibula may be less prominent than the tibia, it remains an integral part of the skeletal system in dogs, contributing to the overall function and stability of the hind limb.