Abstract: A surgical implant device for stabilising a lamina of the spine following a procedure in which a cut is made in the lamina to form two lamina portions. The device has a longitudinally extending spacer component 211 adapted to extend across the cut between the lamina portions and adapted to be fixed to the lamina. The device may have one or more members 215 extending from one side of the spacer component to fit in the space between the two portions of the cut lamina when the device is fixed in position. The device may comprise a first spacer part and a second spacer part which are adapted to be positioned on opposite sides of the cut and connectable together to fix the device in position.