A method for securing neighboring bone plates by an implant includes the steps of resting an inner contact element of the implant on inner faces of the bone plates, resting an outer contact element of the implant on outer faces of the bone plates, connecting the inner contact element and the outer connecting element by a flexible tensioning element, forming a knot between free strands of the tensioning element, wherein the knot is a slip knot, and pushing the knot in a recess of the outer contact element with the knot being positioned at least partially below an outer surface of the outer contact element.