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Implication of femoral stem on performance of articular surface replacement (ASR) XL total hip arthroplasty

Authors :
A. Martin
Thomas Benesch
Matthias Luegmair
Johannes Cip
Archibald von Strempel
Christian Bach
Source :
The Journal of arthroplasty. 29(11)
Publication Year :
2014

Abstract

Taper junctions of large diameter metal-on-metal femoral heads and femoral stems were described as metal ion generator due to accelerated wear and corrosion. However, literature about the Articular Surface Replacement (ASR) total hip arthroplasty (THA) invariably deals with stems manufactured by DePuy Orthopedics (Warsaw, IN, USA). Nothing is known whether different stems with common 12/14 mm tapers affect failure rate or ion release. 99 ASR THA (88 patients) implanted with CoxaFit or ARGE Geradschaft stems (K-Implant, Hannover, Germany) were retrospectively analyzed. After a mean follow-up of 3.5 years revision rate was 24.5%, mostly due to adverse reaction to metal debris (ARMD). CT scan revealed component loosening in 10.3% and pseudotumoral lesions in 12.6%. Elevated ion concentrations (> 7 μg/l) were found in 38.6%.

Details

ISSN :
15328406
Volume :
29
Issue :
11
Database :
OpenAIRE
Journal :
The Journal of arthroplasty
Accession number :
edsair.doi.dedup.....6d6c20886da53e28c739e27bac180285