Patent ID: 7819873

Claim:
A surgical assembly for use in attaching to a selected bone defining a hole extending along a first longitudinal axis, comprising: a. an instrument for engaging said selected bone; and b. a fixation pin having a substantially smooth outer surface and being operably interconnected to said instrument comprising: i. a square body extending along a second longitudinal axis between a distal tip and a tapered section, the square body having: 1. a distal end adjacent said distal tip; 2. a proximal end; and 3. an interference portion which extends beyond a cross section of said hole taken substantially perpendicular to the first longitudinal axis; ii. the tapered section having a first end at the body proximal end and a second end, wherein the tapered section has a first cross-sectional shape at said first end and a second cross-sectional shape at said second end, said first and second cross-sectional shapes being different, and wherein the tapered section increases constantly from the first end to the second end such that a diagonal of said second cross-sectional shape at said second end is greater than a diagonal of said first cross-sectional shape at said first end; and iii. a tool mating section adjacent said tapered section second end, wherein said fixation pin is substantially smooth along its entire length and further wherein said fixation pin holds said instrument at a selected position relative to said selected bone.