Blood supply of hemipelvectomy flaps - The anterior flap hemipelvectomy

In posterior flap hemipelvectomy, preservation of the gluteus maximus with the flap guarantees its viability regardless of the level of ligation of th e iliac vessels. In anterior flap hemipelvectomy with the quadriceps femori s attached to the flap, the dominant blood supply is through the lateral fe moral circumflex branches of the profunda vessels, which is sufficient to m aintain the flap.