Lordotic interbody spinal fusion implants

An artificial interbody spinal fusion implant for insertion within an implantation space formed across the height of a disc space between adjacent vertebral bodies of a human spine, the vertebral bodies having an anterior aspect and a posterior aspect therebetween, said implant comprising:

• a leading end for insertion first into the disc space and a trailing end opposite said leading end, a mid-longitudinal axis, and a depth along said mid-longitudinal axis;
• a top and a bottom between said leading and trailing ends adapted to space apart the adjacent vertebral bodies, a height between said top and said bottom, said top and said bottom having at least one opening therethrough, said openings being in communication with one another to permit for the growth of bone from adjacent vertebral body to adjacent vertebral body through said implant, said top and said bottom being in an angular relationship to each other along at least a portion of the depth of said implant sufficient to maintain the adjacent vertebral bodies in an angular relationship to each other, said top and said bottom each having an interior surface, said interior surfaces being spaced apart to define a hollow interior in communication with said openings;
• opposite sides between said top and said bottom, and between said leading and trailing ends, a width between said opposite sides, and a maximum width of said implant being larger than a maximum height of said implant;
• and
• an exterior surface, at least a portion of which is treated to promote bone ingrowth between said surface and a vertebral body.

An artificial interbody spinal fusion implant for insertion within a disc space between adjacent vertebral bodies of a human spine, the vertebral bodies having an anterior aspect and a posterior aspect, said implant comprising:

• a leading end for insertion first into the disc space and a trailing end opposite said leading end, a mid-longitudinal axis, and a depth along said mid-longitudinal axis;
• a top and a bottom between said leading and trailing ends adapted to be placed within the disc space to contact and support the adjacent vertebral bodies, said top and said bottom having at least one opening therethrough, said openings being in communication with one another to permit for the growth of bone from adjacent vertebral body to adjacent vertebral body through said implant, said top and said bottom being in an angular relationship to each other along at least a portion of the depth of said implant sufficient to maintain the adjacent vertebral bodies in an angular relationship to each other, each of said top and said bottom having an interior surface, said interior surfaces being spaced apart to define a hollow interior in communication with said openings;
• opposite sides between said top and said bottom, and between said leading and trailing ends;
• an access opening for accessing said hollow interior;
• and
• a cover for closing said access opening, said cover cooperatively engaging said access opening, said cover including a surface deviation to facilitate opening and closing of said access opening with said cover.