Expandable spinal implants, systems and methods are disclosed. An expandable spinal implant may include a first endplate, a second endplate, and a moving mechanism that is operably coupled to the first and second endplates. The moving mechanism may include a wedge, a first sliding frame and a second sliding frame disposed on opposite sides of the wedge, a screw guide housing a rotatable first set screw and a rotatable second set screw opposite the first set screw. The first set screw may be operably coupled to the second sliding frame and the second set screw may be operably coupled to the wedge. The moving mechanism may operably adjust a spacing between the first and second endplates upon simultaneous rotation of the first and second set screws and operably adjust an angle of inclination between the first and second endplates upon translating the first set screw or second set screw.

A glenoid baseplate, for an artificial shoulder joint, includes: a base having a fixing hole formed so as to insertedly accommodate a fixer; an insertion part extending at a predetermined angle from the base; and a recessed part made by forming a recess in a part of one surface of the base which is located a predetermined distance from at least a central fixing hole, a peripheral fixing hole, and the edge of the base. The base includes: the central fixing hole formed vertically through the base; and the peripheral fixing hole formed in the periphery of the central fixing hole. The insertion part includes a shaft extending from the base so as to have a hollow extending from the central fixing hole, the insertion part including: a rib protruding, so as to have a predetermined width, from one base-side end of the shaft to the other end; and a rim protruding from the shaft.

A spinal implant for placement between vertebral bodies includes a first member for engaging one of the vertebral bodies, a second member for engaging an opposing one of the vertebral bodies, and at least one extendable support element for inducing movement of the entire first member away from the second member. The first member is connected to the second member such that the first member moves away from the second member by a larger distance at a first end of the implant than at a second end of the implant. A connecting member may connect the first and second members together at the second end of the implant. The connecting member may include one or more rotatable linkages, or the connecting member may be an extension of one of the first and second members slidably received within a track defined within the other of the first and second members.