[Special diagnostic and therapeutic procedure for the incomplete form of primary varicosis].

The difference between the incomplete and complete form of the primary varicosis of the internal saphenous vein is that the saphenofemoral valve is still intact in the incomplete form. There are two types of the incomplete form, one caused by a perforating vein and the other by a lateral branch of the saphenous vein. The preoperative diagnostic procedure is particularly important for the optimal choice of treatment.