Tools and methods for implanting hip resurfacing femoral prostheses along
a path defined by the axis of a shaped femoral head surface are
described. The prostheses are stemless partial ball components having an
outer surface shaped to conform to an acetabular socket and may be a two
part design having a mating sleeve component with an internal bore
adapted to receive the shaped femoral head. The tools and methods are
capable of accurately implanting both one and two piece ball components
and sleeves without requiring the prosthesis to have a central stem or
the preparation of a stem cavity in the femoral head and neck.