Total wrist prosthesis comprising a radial component with a stem for
fixation into the radius, a carpal component with one or more stems for
fixation into the capitate and an intermediate bearing component which
articulates with the radial component and allows rotational movement of
the carpal component relative to the radial component plus hinged
movement in two transverse planes. The radial component body may have a
concave or convex surface to articulate with a matching surface on the
intermediate bearing component. The carpal body may have a projection
which is received in a recess in a base surface of the intermediate
bearing component, and which has a pair of lugs that are received in an
annular groove in the recess for an axially secure connection that allows
small relative rotational movement as permitted by tendons and ligaments
of the wrist.