The presented invention is an implant meant for hip resurfacing
arthroplasty, a surgical reconstruction performed on patients with
diseased hips, during which the surgeon replaces the surface of the
femoral head with a polished metallic spherical shell. The presented
implant consists of a metallic shell (1) with a polished hemispherical
outer surface and an inner hemispherical concave surface, which possesses
a trunnion (2) with a thread (4) and thin meridian fins (3) and is fully
metal porous coated for osseointegration between implant and bone. The
presented implant is fitted onto the appropriately contoured femoral head
and is stabilized by means of a preload tension wire (5), which drills
the femoral head and neck and exits the greater trochanter. The wire
attaches proximally to the thread (4) of the trunnion (2) of the shell
and distally to a nut-washer combination (6), by the tightening of which
establishment of preload is achieved.