Osteochondrosis of the femur.

Osteochondrosis can occur in the stifle joint(s) of young, rapidly growing large breeds of dogs. Although not as common as osteochondrosis of the shoulder, elbow, and hock joints, the osteochondral defect in the femoral condyle(s) and stifle joint fragment can cause a clinically apparent lameness. Radiography is beneficial in identifying the lesion(s), and surgical therapy is useful in restoring limb function.