Interbody with extendible members

1. An interbody implant comprising:

a top surface, a bottom surface, a first side surface, a second side surface, and a front surface defining an interior space of a first body; and at least one surface including a two-dimensional array of a plurality of members comprising a shaft extending along an axis between a first end and a second end of the respective member, each shaft extending through an opening in the at least one surface such that the first end is positioned outside of the first body and the second end is positioned in the interior space of the first body, the first end being wider than a portion of the shaft extending through the opening, wherein each of the plurality of members is configured and dimensioned to move independently from a first position to a second position by axial translation of the respective shaft through the opening.

2. The interbody implant of claim 1 , wherein the top surface includes a plurality of the openings.

3. The interbody implant of claim 1 , wherein the bottom surface includes a plurality of the openings.

4. The interbody implant of claim 1 , further comprising a spring.

5. The interbody implant of claim 1 , wherein each of the second ends of the plurality of members is spherically shaped and has a larger dimension transverse to the axis of the respective shaft than the opening through which the shaft extends.

6. The interbody implant of claim 1 , wherein a second body is configured and dimensioned to facilitate insertion into and translation within the interior space of the first body.

7. The interbody implant of claim 1 , wherein each of the shafts has a uniform thickness along the axis of the respective shaft.

8. The interbody implant of claim 1 , wherein the first end is a curved surface.

9. The interbody implant of claim 1 , wherein the first end is a rough surface.