A bone stabilization implant includes a stabilization plate provided with anchor orifices intended to receive bone anchor screws and a locking element secured in rotation to a pivot shaft pivotally mounted in a bore of the plate and movable between a rest position and a locking position of the bone anchor screw. The locking element is integrally disposed inside a recess and its lower face has a central area bearing on a bottom wall of the recess and at least one peripheral area adapted to at least partially cover an anchor orifice in the locking position. The lower face has a convex shape according a radial axis extending radially to its peripheral area.
