BONE REAMER AND METHODS OF USE
A bone reamer includes a shaft having a first and a second end. The second end is configured to connect to a rotating power source. A head of the reamer includes a rear face connected to the first end of the shaft, a cutting face on an opposing side of the head relative to the rear face, and a perimeter portion having an inner perimeter diameter and an outer perimeter diameter. The outer perimeter diameter defines outer boundaries of the rear face and the cutting face. A blade member of the reamer is disposed upon the cutting face and extends at least across the inner perimeter diameter of the perimeter portion. A center drill bit is disposed on the cutting face. The drill bit and cutting blade are concentric about a center axis of the reamer.
1 . A bone reamer comprising:
a shaft having a first and a second end, the second end configured to connect to a power source;
a head comprising:
a rear face connected to the first end of the shaft,
a cutting face on an opposing side of the head relative to the rear face, and
a perimeter portion having an inner perimeter diameter and an outer perimeter diameter, the outer perimeter diameter defining outer boundaries of the rear face and the cutting face;
a blade member disposed upon the cutting face and extending at least across the inner perimeter diameter of the perimeter portion, the blade member comprising:
a first blade portion having a first cutting edge, and
a second blade portion having a second cutting edge, the first and second cutting edges being disposed on opposing sides of the blade member; and
a center drill bit disposed on the cutting face between the first and second blade portions of the blade member, the center drill bit and the blade member being concentric with a center axis of the reamer.
2 . A method of surgically implanting an orthopedic implant into a bone, the method comprising:
surgically exposing the surface of the bone;
selecting a sizer from a plurality of sizers, each sizer having a different outer profile;
utilizing a handle to place the sizer against a portion of the bone to locate the center of the portion of the bone;
inserting a pin into a through-hole of the handle and against the center of the portion of the bone;
driving the pin into the center of the portion of the bone;
sliding a bone reamer over the pin to align the bone reamer with the center of the portion of the bone;
machining the portion of the bone with the bone reamer to simultaneously ream a circular surface, drill a center bore hole and cut a circular groove into the portion of the bone, the center bore hole, circular groove and circular surface being concentric;
sliding a trial over the pin to test the fit of an implant; and
using an insertion tool to insert the implant into the center bore hole and onto the circular surface.