An exemplary facet screw for joining a first facet of a first vertebra with a second facet of a second vertebra includes proximal and distal ends. The proximal end includes a threaded region for attachment to the first facet. The distal end includes a non-threaded region with a first configuration that freely inserts into a bore of the second facet and a second configuration that partially interferes with the bore to retain the distal end within the second facet.
申请公布号
US2012184993(A1)
申请公布日期
2012.07.19
申请号
US201213350524
申请日期
2012.01.13
申请人
ARAMBULA JARED;MAHAR ANDREW TODD;ALPHATEC SPINE, INC.