Fractures of the femur (the upper bone of the rear leg) are the most frequent fractures in veterinary medicine. They are almost always caused by trauma, such as hit by car. Femoral fractures are usually repaired through Intra-medullary pin placement surgery.

Slight cracks in the bone may be treated with stabilization and enforced rest. Most animals with this type fracture should be strictly confined for the 4-6 weeks. Splints and casts should be rechecked weekly.