By Michael M. Morlock, Gerd Huber, Nick Bishop (auth.), Karl Knahr (eds.)
In contemporary years the ‘Tribology Day’ has turn into a well-known spotlight of the EFORT Congress, and on the 2012 Congress in Berlin a complete day was back dedicated to tribology in overall hip arthroplasty. EFORT made up our minds that, given the large curiosity in tribology, e-book of the displays will be warmly welcomed through fellow execs who have been not able to wait. The ensuing publication comprises all shows added at the day and covers quite a number fascinating themes. up to date info is equipped at the a variety of articulating fabrics, and the entire articulations lately utilized in overall hip arthroplasty are mentioned, with provision of medical info. The publication could be of curiosity not just to skilled surgeons but additionally to trainees and citizens who desire to expand their wisdom of overall hip arthroplasty.
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In recent times the ‘Tribology Day’ has turn into a well-known spotlight of the EFORT Congress, and on the 2012 Congress in Berlin a complete day was back dedicated to tribology in overall hip arthroplasty. EFORT determined that, given the large curiosity in tribology, ebook of the displays will be warmly welcomed via fellow pros who have been not able to wait.
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Additional resources for Total Hip Arthroplasty: Tribological Considerations and Clinical Consequences
If the imprint is asymmetric, this means that the femoral head was not correctly fixed on the taper and that probably the taper may be damaged; a new alumina head should not be used on such a taper. If the imprint is a perfectly symmetric ring, this means that the taper has no damage and that a new alumina head could probably be used. 6 How to Perform a Revision for a Fracture of a Component It is important to recognize a fracture of a ceramic (Fritsch and Gleitz 1996) component early, because the abrasive effect of alumina particles can cause catastrophic destruction of bone or metallosis because of metallic debris originated from the metallic stem, neck taper, or socket metal back.
Aluminas are vulnerable to point loading that can occur if there is debris at the taper mating surfaces. This is applicable at the femoral head/stem interface and the acetabular shell/liner interface and can lead to fractures in both scenarios. Clean assembly (Pandorf 2009) of the components is therefore important but sometimes difficult to achieve during surgery. Failure to engage the tapers of the 40 P. Hernigou et al. titanium shell and alumina liner properly may also be responsible for fracture of the liner or for liner chipping on insertion.
Advantages of ceramic-ceramic include its extreme hardness and scratch resistance, improved lubrication that creates a low coefficient of friction resulting in excellent wear resistance, and decreased and less bioactive particulate debris than polyethylene or metal (Bierbaum et al. 2002; Clarke 1992; Saikko et al. 1993). However, a number of authors have raised concerns regarding the use of titanium acetabular components coupled with ceramic press-fit liners including malseating of the ceramic liner, fracture of the liner (HA et al.
Total Hip Arthroplasty: Tribological Considerations and Clinical Consequences by Michael M. Morlock, Gerd Huber, Nick Bishop (auth.), Karl Knahr (eds.)