An intervertebral spinal implant adapted to be inserted between two successive vertebral bodies, comprising: - a volume (1) defining a lower face (2) and an upper face (3), an anterior face (4), a posterior face (5) , and two lateral faces (6, 7) connecting the two lower (2) and upper (3) faces, - a first (8) and a second (9) inclined and through hole formed in the volume (1) so as to at their respective ends on the front face (4) and the lower (2) and upper (3) surfaces of the volume (1), respectively, - a first (10) oblong body for fixing the volume (1), length greater than that of the first (8) inclined hole, adapted to cooperate by longitudinal insertion before in the latter for its implantation in the vertebral body adjacent to the lower face (2) of the volume (1), - a second (11) ) oblong body for fixing the volume (1), of greater length than that of the second me (9) inclined hole, adapted to cooperate by longitudinal insertion before in the latter for its implantation in the vertebral body adjacent to the upper face (3) of the volume (1), - the first (8) and second (9) ) intersecting inclined holes so that one (11) of said first (10) and second (11) oblong fastening bodies constitutes a means for blocking the other (10) of the first (10) and second (10) 11) oblong fixing bodies, once the first (10) and second (11) oblong fastening bodies in place in the first (8) and second (9) inclined holes, respectively.Implant rachidien intervertébral, destiné à être inséré entre deux corps vertébraux successifs, comprenant : - un volume (1) définissant une face inférieure (2) et une face supérieure (3), une face antérieure (4), une face postérieure (5), et deux faces latérales (6, 7) reliant les deux faces inférieure (2) et supérieure (3), - un premier (8) et un deuxième (9) trous inclinés et traversants formés dans le volume (1) en sorte de déboucher à leurs deux extrémités respectives sur la face antérieure (4) et les face inférieure (2) et supérieure (3) du volume (1