System and method for inserting a fastener into bone

A method of making an insertion guide assembly, comprising:

• forming a sidewall having an entrance end, and an exit end, and a cavity defined by an interior surface of the sidewall extending from the entrance end to the exit end, the sidewall at the entrance end sized and configured to have a first cross-sectional distance greater than a diameter of a head of a fastener, the sidewall at the exit end having a second cross-sectional distance less than the diameter of the head of the fastener, an exterior surface of the sidewall spaced outwardly from the interior surface, the interior surface of the sidewall having at least one recess configured to mate with a corresponding protrusion on a drill guide;
• and
• inserting the drill guide into the cavity of the insertion guide such that the drill guide is telescopically nested within the insertion guide, wherein the drill guide has a first end, a second end, and a second sidewall extending between the first end and the second end, the first end of the drill guide having an opening with a third diameter sized and configured to receive a drill bit.

An insertion guide assembly for guiding fasteners one at a time into bone, the insertion guide assembly comprising:

• an insertion guide having a sidewall extending between an entrance end and an exit end, and a cavity extending from the entrance end to the exit end, the cavity at the entrance end having a first cross sectional distance greater than a diameter of a head of a fastener, the sidewall at exit end having a second cross sectional distance less than the diameter of the head of the fastener, wherein the sidewall at the exit end of the insertion guide includes a protrusion configured to decrease cross sectional diameter distance across the cavity at the protrusion, the protrusion having a proximal end, a distal end, and a length extending between the proximal end and the distal end, wherein the length is less than a length of a shaft of the fastener;
• and
• a drill guide configured to be telescopically nested within the insertion guide.