Experience with a Hydroxyapatite-Coated Titanium Plasma Sprayed Porous implant at 15-18 years

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Experience with a Hydroxyapatite-Coated Titanium Plasma Sprayed Porous implant at 15-18 years

By Joint Implant Surgeons FEATURING Keith Berend, MD

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December 22, 2008

Advocates of hydroxyapatite in primary total hip arthroplasty report enhanced fixation and early improvements in ...
read more ↘ pain and function. Others report no difference in long-term outcomes with HA application to an already proven fixation surface. We now report the long-term followup data on 191 consecutive THAs in which a standard or HA-coated stem was implanted using a proximally porous, plasma sprayed titanium, tapered geometry stem. Survivorship of the femoral component with aseptic loosening as the end-point was 99.2% for noncoated stems and 100% for HA stems. Long term outcomes of plasma sprayed titanium tapered stems are excellent regardless of HA application, with no benefit or detriment noted. With the current trend towards rapid recovery and shortened hospital stay, use of HA may warrant reinvestigation.
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