Apparatus and associated methods relate to a laterally expandable spinal implant configured with pivoting wings adapted to secure the implant when inserted between vertebrae with stabilizing force applied to the vertebrae by shaft-driven wedges coupled with the wings. In an illustrative example, the wings may pivot along a hinge axis to swing outward from the implant central body until they press against vertebral endplates superior and inferior. The hinge may be, for example, disposed longitudinally to the implant central body. In some examples, four wings may be mounted axially in the implant central body. Some embodiments may include shaft-driven wedges coupled with the wings and adapted to force the wedges out laterally from the central body. Various examples may advantageously provide improved post-implant spinal stability, enhanced post-implant bone growth, and increased implant contact area with bone, based on the implant pressing the wings against the endplates as the shaft rotates.
