An implant for insertion into a joint between articulating bones is
provided. The implant includes a generally cylindrical metal body having
a plurality of threads disposed thereon. The implant also includes a
smooth polymeric portion that is configured to be disposed between the
articulating bones of the joint. The polymeric portion provides a bearing
surface for the articulating bones, and thus inhibits friction and
irritation of the joint tissue. A pin is axially disposed through the
polymeric portion and through the body and provides an attachment feature
to facilitate rotation of the implant and engagement of the threads
within the joint.