5. In a medical implant assembly having two and up to a plurality of bone anchors cooperating with a longitudinal connecting member, the improvement wherein the connecting member comprises: a) a sleeve for attachment to a first bone anchor, the sleeve having a first through bore having a central axis and an outer structure, the bore extending through the outer structure, the outer structure having a first planar surface disposed parallel to the central axis, the outer structure sized and shaped for placement adjacent an outer surface of the first bone anchor; b) a spacer located between the two bone anchors, the spacer having a second through bore, the spacer engaging the sleeve outer structure, the spacer having an extended portion with a second planar surface engaging the sleeve first planar surface, prohibiting rotational movement of the extended portion with respect to the sleeve; and c) a tensioned cord slidingly received within the first and second through bores, the cord being in one of a fixed and slidable relation with respect to the sleeve.
5. In a medical implant assembly having two and up to a plurality of bone anchors cooperating with a longitudinal connecting member, the improvement wherein the connecting member comprises: a) a sleeve for attachment to a first bone anchor, the sleeve having a first through bore having a central axis and an outer structure, the bore extending through the outer structure, the outer structure having a first planar surface disposed parallel to the central axis, the outer structure sized and shaped for placement adjacent an outer surface of the first bone anchor; b) a spacer located between the two bone anchors, the spacer having a second through bore, the spacer engaging the sleeve outer structure, the spacer having an extended portion with a second planar surface engaging the sleeve first planar surface, prohibiting rotational movement of the extended portion with respect to the sleeve; and c) a tensioned cord slidingly received within the first and second through bores, the cord being in one of a fixed and slidable relation with respect to the sleeve. 9. The improvement of claim 5 wherein the first bone anchor has a compression insert and a closure top and wherein the sleeve has opposed extended portions, each portion having a top surface and a bottom surface, each bottom surface engaging the insert and each top surface engaging the closure top.