The invention relates to an implant (1) for osseous fusion between two bones including a first portion (20) having a longitudinal axis A for being inserted in the first bone and including a first means (24) for attaching said implant in said first bone and a second portion (30) having a longitudinal axis B for being inserted in the second bone and including a second means (34) for attaching said implant in said second bone said first and second portions (20 30) being connected by a central core (40) said central core being a solid body the cross section of which in a plane perpendicular to said longitudinal axis A has the shape of a star having at least three points (41 42 43) said first portion having three tabs (21 22 23) each tab extending along said longitudinal axis A from the free end (41a 42a 43a) of one of the points of said central core.
