Composite telescoping anterior interbody spinal implant

A composite telescoping interbody spinal implant comprising:

• a cage formed of metal, a metal alloy, or both, able to change size following manufacture, and having a top plate with a plurality of posts and a bottom plate with a corresponding plurality of columns, the posts telescopically engaging the columns upon assembly of the top plate with the bottom plate, wherein the posts extend partially outside the columns when the top plate is in a raised first position with respect to the bottom plate and the posts and columns are fully engaged when the top plate is in a second position closest to the bottom plate, wherein:
• (a) the top plate has a top surface with a roughened topography, a bottom surface which faces the bottom plate, opposing lateral sides rounded to ease placement of the implant, and opposing anterior and posterior portions with the anterior portion including a sharp edge and the posterior portion rounded to ease placement of the implant, and
• (b) the bottom plate has a top surface which faces the top plate, a bottom surface with a roughened topography, opposing lateral sides rounded to ease placement of the implant, and opposing anterior and posterior portions with the anterior portion including a sharp edge and the posterior portion rounded to ease placement of the implant;
• and
• a non-metallic body inserted between the top plate and the bottom plate and defining the adjustable height of the implant,
• wherein the cage and the body are sized, shaped, and adapted to maximize contact by the implant with the apophyseal rim of the vertebral endplates.