Provided are methods for processing a green body that includes compacted
metal powder, comprising impacting the green body with a particulate
material for a time and under conditions effective to displace a portion
of the metal powder from the green body. The present methods can be used
to prepare green bodies that have "roughened" surfaces and that can be
used to make orthopedic implants displaying low movement relative to bone
when installed in situ, which corresponds to higher stability upon
implantation and decreases the time required for biological fixation of
the implant. Also provided are implants comprising a metallic matrix, and
methods comprising surgically installing an implant prepared from a
"surface roughened" green body in accordance with the present invention.