Patent ID: 8337498

Claim:
A cannulated milling assembly for cutting an aperture in a bone, the assembly comprising: a milling tool member having a cutting head portion and a shank portion, the cutting head portion having a cutting surface in a first plane, and the shank portion extending outwardly from the cutting head portion in a second plane, the second plane being perpendicular to the first plane, the shank portion having a cavity with an opening, the cavity being in the second plane and the opening being in fluid communication with the cutting head portion and the cutting surface, the shank portion having a coupling surface opposite the opening of the cavity; and a guide rod having a first portion and a second portion, the first portion being configured to be inserted into the bone so that the second portion extends outwardly from the bone, the second portion being configured to be rotatably inserted within the cavity of the milling tool member, wherein the milling tool member is configured to be rotatable relative to the guide rod so as to be movable into the bone along a longitudinal axis of both the first portion and the second portion of the guide rod to cut the aperture, and wherein the longitudinal axis of the guide rod is substantially straight.