Abstract
Background: #Ceramic-on-ceramic (CoC) bearings have been in use
in total #hipreplacement (THR) for more than 40 years, with excellent
long-term survivorship but concerns over the ceramic-on-ceramic bearings
wear persist.There are few studies where they analysed the
ceramic-on-ceramic #implants retrieved. We wanted to investigate the wear
patterns and the surface properties of the CoC first generation THR
implants removed.
Case description: We have analysed two cases of ceramic head
on ceramic liner of Autophor primary THA implanted in active patients
and
retrieved for aseptic loosening after 34 and 31 years of well
function.The sphericity, surface roughness and #microtopography was
assess by a
profilometer and a white light interferometer. Scanning #electronmicroscopy of the implant-retrieved surfaces was also perform.
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