A spinal implant assembly (10, 110) comprising an intervertebral device (20) configured to be installed in a spinal disc space, the intervertebral device having a head component (20b) and a body component (20a), the spinal implant assembly further comprising a coupling body (40) for coupling the head component (20b) of the intervertebral device (20) and an elongate member (30), the coupling body (40) and head component (20b) each having a longitudinal axis, wherein the head component (20b) can be received by the coupling body (40) with its longitudinal axis at a selected angle within a predetermined range of angles relative to the longitudinal axis of the coupling body.