A 36-year-old man, victim of being struck by a bicycle, who evolved to pain in the right knee. Anteroposterior X-ray of the right knee showing a comminuted bicondylar fracture with significant depression of the lateral condyle of the tibia (thick arrow) and involvement of the tibial spines (thin arrow). Fracture of the medial tibial condyle, characterized by the double line (arrowhead), which, in and of itself, indicates greater severity of the injury, because it represents the load area of the joint.