Expandable interbody implant with lateral articulation

A spinal implant for placement in an intervertebral space between a first vertebral body and a second vertebral body of a spine, the spinal implant comprising:

• a first portion having an upper vertebral engagement surface and an opposing lower vertebral engagement surface, the first portion having a first extendable support element including a first vertical post and a first pawl the first extendable support element being actuatable to move the upper and lower vertebral engagement surfaces of the first portion away from one another along a superior-inferior dimension;
• a second portion having an upper vertebral engagement surface and an opposing lower vertebral engagement surface, the second portion having a second extendable support element including a second vertical post, and a second pawl the second extendable support element being actuatable to move the upper and lower vertebral engagement surfaces of the second portion away from one another along the superior-inferior dimension
• a tool interface at a proximal end of the spinal implant configured to receivably couple a tool to the spinal implant;
• and
• a hinge connecting together the first and second portions such that the first and second portions are articulatable about the hinge;
• wherein the upper and lower vertebral engagement surfaces of the first portion are movable relative to one another along a superior-inferior dimension independently of movement of the upper and lower vertebral engagement surfaces of the second portion relative to one another along the superior-inferior dimension.