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Journal of Long-Term Effects of Medical Implants

Publication de 4  numéros par an

ISSN Imprimer: 1050-6934

ISSN En ligne: 1940-4379

SJR: 0.184 SNIP: 0.485 CiteScore™:: 1.1 H-Index: 39

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Assessment of the Damage in Retrieved Patellar Components

Volume 20, Numéro 1, 2010, pp. 57-72
DOI: 10.1615/JLongTermEffMedImplants.v20.i1.80
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RÉSUMÉ

Patellofemoral complications are cited as a leading cause for revision surgery following total knee arthroplasty. Despite widespread clinical use, the decision to resurface the patella, or not, is controversial and remains surgeon dependent. Damage to the patellar component can lead to revision surgery; however, little work exists investigating the damage they sustain in vivo. Twenty-four retrieved patellar components were assessed for damage. There was a wide variation in wear scar morphology, although the mean wear scar area spanned mediolaterally in a band across the articular surface and was 364.32 ± 64.7 mm2 in area. Maximum linear penetration was located in the lateral region of the articular surface. Assessment of damage mode grading indicated that it was more severe in the lateral quadrant, although the method's lack of consideration of the chronological progression of wear creates uncertainty over this finding. Volume change ranged from −1.3 to −45.16 mm3/year, and maximum penetration was in the lateral region. Damage to the patellar component of knee replacement has been shown to be significant. The number of components in the study was too small to determine a difference in damage in all-polyethylene and metal-backed designs; however, the volume loss of all-polyethylene patellae was found to be significant.

CITÉ PAR
  1. Maiti Raman, Fisher John, Rowley Liam, Jennings Louise M, The influence of kinematic conditions and design on the wear of patella-femoral replacements, Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 228, 2, 2014. Crossref

  2. Ellison Peter, Tipper Joanne L, Jennings Louise M, Fisher John, Biological activity of polyethylene wear debris produced in the patellofemoral joint, Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 226, 5, 2012. Crossref

  3. Maiti Raman, Wagner Rasmus, Martinez Sanchez Noe A., Ramirez-Reivich Alejandro, Ellison Peter, Perrault Cecile, Carre Matt J., Dwyer-Joyce Rob, Neville Anne, Lewis Roger, From Macroscopic to Microscopic: Experimental and Computational Methods to Investigate Bio-tribology, in 7th International Conference on the Development of Biomedical Engineering in Vietnam (BME7), 69, 2020. Crossref

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