PMID: 11908483Mar 23, 2002Paper

Investigation of wear of knee prostheses in a new displacement/force-controlled simulator

Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
P I BarnettJ Fisher

Abstract

The performance of two knee simulators designed by ProSim (Manchester, UK) was evaluated by comparison of the wear seen in the press-fit condylar (PFC) Sigma (DePuy) knee prosthesis. Twelve specimens of the same design and manufacturing specification, were subjected to a wear test of 2 x 10(6) cycles duration using bovine serum as a lubricant. The anterior/posterior displacement and internal/external rotation inputs were based on the kinematics of the natural knee. International Standards Organization (ISO) standards were used for the flexion and axial load. The wear rates and wear scar areas were compared across all stations. The mean wear rates found were 17.6+/-5 mm3/10(6) cycles for stations 1 to 6 and 19.6+/-4 mm3/10(6) cycles for stations 7 to 12, resulting in an overall mean wear rate of 18.1+/-3 mm3/10(6) cycles. The differences between the two simulators were not significant. The average wear scar area seen on inserts from stations I to 6 was calculated at 32.4+/-1 per cent of the intended articulating surface. Similarly on stations 7 to 12 the average wear scar area was 30.7+/-3 per cent. The wear scars seen were a good physiological representation of those found from clinical explant data. This study has shown good r...Continue Reading

References

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Citations

Jul 16, 2011·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·C L BrockettJ Fisher
Sep 20, 2011·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·J-M BrandtJ B Medley
Jul 13, 2012·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Jan-M BrandtJohn B Medley
Jan 16, 2009·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·A GalvinJ Fisher
Sep 2, 2008·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·J L Lanovaz, R E Ellis
Mar 23, 2013·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Abdellatif AbdelgaiedZhongmin Jin
May 11, 2016·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Simon L SmithThomas J Joyce
May 11, 2016·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Claire L BrockettLouise M Jennings
Nov 10, 2004·Clinical Orthopaedics and Related Research·John FisherEileen Ingham
Jan 10, 2008·Artificial Organs·Saverio AffatatoMarco Viceconti
Jul 2, 2009·The International Journal of Artificial Organs·Thomas M GruppWilhlm Bloemer
Feb 27, 2008·Journal of Biomechanical Engineering·Dong ZhaoBenjamin J Fregly
Jan 10, 2009·Artificial Organs·Saverio AffatatoMarco Viceconti
Apr 8, 2010·Journal of Biomechanical Engineering·Benjamin J FreglyJohn D DesJardins
Jul 1, 2017·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Abdellatif AbdelgaiedLouise M Jennings
Aug 12, 2009·Clinical Orthopaedics and Related Research·John FisherEileen Ingham
Aug 23, 2006·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Carol J Bell, John Fisher
Jun 2, 2007·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·L M JenningsJ Fisher

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