An electrode assembly includes an electrode adapted to at least partially surround a first longitudinal portion of a target nerve or nerve bundle. The electrode includes an inner surface adapted to contact an outer surface of the target nerve or nerve bundle. The electrode also includes a plurality of fiber elements each having a proximal end and a distal end. The fiber elements are coupled at the proximal ends to the inner surface of the electrode and the distal ends of the fiber elements are operative to penetrate the outer surface of the target nerve or nerve bundle.
