A 59-year-old man was hit by a car in the back of the knees. He had a cold sensation and pulselessness in the right leg. He did not have bone fractures, but had dirty skin injuries in the back of bilateral knees. DSA revealed complete obstruction of the right popliteal artery and good collateral flow to the peripheral arteries in the right lower leg. We did not perform emergency operation because of the good collateral flow and dirty skin injuries. After the healing of the skin injuries, we performed popliteal artery reconstruction with autologous saphenous vein graft. The postoperative course was uneventful with successful patency of the graft.