Graphene-enhanced orthopedic cutting instruments

A reamer, which comprises:

• a) a cutting shell having a shell wall with spaced apart exterior and interior shell surfaces, a shell wall thickness therebetween, the shell having a curvature comprising at least a portion of a first hemisphere extending from an apex to a lower edge, the cutting shell being rotatable about a rotational axis that extends through the apex, wherein the cutting shell is composed of a first material having a first coefficient of thermal conductivity;
• b) a second material having a second coefficient of thermal conductivity that is different than the first coefficient of thermal conductivity of the first material and that contacts at least a portion of the shell interior surface, the shell exterior surface, or both the shell interior and exterior surfaces;
• and
• c) a plurality of cutting teeth, each having a tissue cutting surface, wherein the tissue cutting surface extends outwardly from the exterior surface of the shell.