Surfaces and processes for wear reducing in orthopaedic implants

A prosthesis, comprising:

• (a) a component having an upper and a lower surface,
• (b) the lower surface having indentations covering about 10 to about 20% of the surface area of the lower surface of the component and placed in areas where the component receives a high degree of wear, such that the indentations are oriented and dimensioned in a manner that reduces surface area of the lower surface, wherein when the lower surface is in contact with another prosthesis member, the component experiences lower net wear as compared to a component not having such indentations under substantially the same load.

A mobile bearing device, comprising:

• a mobile bearing insert having an underside surface adapted to cooperate with a first component and a topside surface adapted to cooperate a second component, the insert having a pattern of indentations on its underside surface that are oriented and dimensioned in a manner that reduces surface area of the insert in contact with the first component, providing lower net wear on the insert as compared to an insert not having such indentations under substantially the same load, the indentations covering about 10% to about 20% of the underside surface.