an implant having an exterior threaded surface portion, said exterior threaded surface portion defining first and second channels said first channel having a longitudinal axis and a first locking surface;

a driver, operable to be removably disposed within said first and second channels during the implantation of the implant, having a cutting portion and a driving portion, wherein the cutting portion is configured to form an implant engaging surface within a work material, and the driving portion is configured to drive the threaded portion into engagement with the implant engaging surface; and

a generally u-shaped fastener having first and second members, wherein the first member is disposed within the first channel and configured to be fixed to the implant and the second member is outside the first channel, said first member defining a second locking surface engaged with the first locking surface thereby restricting linear movement of the u-shaped fastener in a first direction along the longitudinal axis of the first channel, said fastener and implant defining an aperture therebetween, said aperture being configured to fixably engage graft material and, wherein at least one of the implant or the fastener defines a graft engaging surface within the aperture, said graft engaging surface comprising a graft engaging member configured to engage the graft.