The present application relates to an expandable spinal implant assembly (1) for insertion between two adjacent vertebral bodies. The expandable spinal implant assembly comprises a substantially hollow first body (10) with a first superior endplate (11) with a first top inside face (25) and a first inferior endplate (12) with a first bottom inside face (26). The first superior endplate (11) and the first inferior endplate (12) are connected together on at least one side by a lateral wall. Further, at least one strut (17) is arranged within said first body (10) and connects the first top inside face (25) of said superior endplate (11) with the first bottom inside face (26) of said inferior endplate (12), said strut (17) comprising a first threaded through bore (18) with a central axis. The expandable spinal implant assembly further comprises a substantially hollow second body (40) with a second superior endplate (41) and a second inferior endplate (42), said second body (40) being at least partially inserted within said first body (10). A central screw (70) with a first end (71) comprising a ball- head (72) and a drive (73), said central screw (70) further having a threaded shaft (74) is engaged within said first threaded through bore (18).La présente invention concerne un ensemble implant vertébral expansible (1) destiné à être introduit entre deux corps vertébraux adjacents. L'ensemble implant vertébral expansible comprend un premier corps (10) sensiblement creux comportant un premier plateau vertébral supérieur (11), doté d'une première face interne supérieure (25), et un premier plateau vertébral inférieur (12), doté d'une première face interne inférieure (26). Le premier plateau vertébral supérieur (11) et le premier plateau vertébral inférieur (12) sont reliés l'un à l'autre sur au moins un côté par une paroi latérale. En outre, au moins une entretoise (17) est agencée à l'intérieur dudit premier corps (10) et relie la première face interne supérieure (25) dudi
