Intervertebral implant (1) comprising (i) a first elongated implant member (20) with a longitudinal axis (221), an upper surface (222) and a lower surface (223) for apposition to the endplates of two adjacent vertebrae, and with a lateral circumferential surface (224) and (ii) a second elongated implant member (30) with a longitudinal axis (321), an upper surface (322) and a lower surface (323) for apposition to the same endplates and with a lateral circumferential surface (324). Said elongated implant members (20, 30) are rotatably coupled to a central body (10) for rotation in a central plane (101 essentially parallel to said upper and lower surfaces. Further, a) said first and second elongated implant members (20, 30) comprise each an inner end portion (225；325) which comprises a segment of a toothed wheel (220；320) with gear teeth (23；33) and with an axis of rotation (227；327) essentially orthogonal to the central plane of the intervertebral implant； and a free outer portion (226；326)； and whereby said free outer portions (226；326) of said first and second elongated implant members (20, 30) are rotatable around the axis of rotation (227；327) of the segment of a toothed wheel (220；320) of their respective inner end portions (225；325).L'invention concerne un implant intervertébral (1) comprenant (i) un premier élément d'implant allongé (20) comprenant un axe longitudinal (221), une surface supérieure (222) et une surface inférieure (223) pour l'apposition sur les plaques d'extrémité de deux vertèbres adjacentes, et comprenant une surface circonférentielle latérale (224), et (ii) un second élément d'implant allongé (30) comprenant un axe longitudinal (321), une surface supérieure (322) et une surface inférieure (323) pour l'apposition sur les mêmes plaques d'extrémité, et comprenant une surface circonférentielle latérale (324). Lesdits éléments d'implant allongés (20, 30) sont accouplés rotatifs à un corps central (10) pour une rotation dans un plan central (101) e
