Elastic properties of a dural substitute in microvascular decompression ofthe trigeminal and facial nerves

In order to decrease the microvascular compressions of the trigeminal and f acial nerves, the authors report a new surgical method. The procedure consi sts in interposing a piece of non absorbable polyesterurethane dum substitu te folded in two between the nerve and the vessel. This provides an elastic effect which keeps the vessel at a certain distance from the nerve and dec reases the transmission of the vascular beats.