The invention relates to a fixing clip for articular facets, comprising three aligned legs (4, 5, 6) that are integral with a bridge (7), specifically a middle leg (4) and outer legs (5, 6), the legs (4, 5, 6) each having two faces and a free end (8, 9, 10), the free ends (9, 10) of the outer legs (5, 6) being pointed, the outer legs (5, 6) having an inner face (11, 12) and an outer face (13, 14), the middle leg (4) having on each of its two faces a number of non-return projections (17), the outer legs (5, 6) having on their inner faces a number of non-return projections (17), the tops of the non-return projections (17) constituting active surfaces (S1, S2), the active surfaces being parallel.