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12/20/2011
The use of cemented titanium stems in total hip arthroplasty
presents some advantages and disadvantages, according to researchers
in the United Kingdom - but the bad tends to outweigh
the good. Bodo Purbach, MD, presented his team’s findings at the
British Orthopaedic Association and Irish Orthopaedic Association
Combined Meeting 2011, in Dublin.
"Titanium stems have a mixed report in the literature," Purbach
said. "They were originally considered to be a good material due to
their excellent biocompatibility, but both good and bad outcomes
have been reported … they have certainly been declining in
popularity."
Purbach said 5,233 primary total hip arthroplasty (THA) procedures
using a C-stem have been performed at his center since 1993center...
"This is the largest reported cohort of patient within a single
center with a cemented titanium stem," Purbach said. "It represents
standard U.K. district general hospital practice. We have a 10-year
survival of 91%, with aseptic loosening as the main mode of failure.
But we also have a relatively high rate of radiographic loosening,
and that is consistent with other studies and titanium stems."
Reference:
*Purbach B, Wroblewski BM, Siney PD, et al. Triple tapered polished
cemented stem: the C-stem in total hip arthroplasty with a minimum
follow-up of 10 years. Presented at the British Orthopaedic
Association and Irish Orthopaedic Association Combined Meeting 2011.
Sept. 13-16. Dublin.
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