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Knee Surgery, Sports Traumatology, Arthroscopy

Erschienen in:

01.02.2008 | Knee

Radiostereometric measurement of polyethylene deformation pattern in meniscal bearing TKR at 5 years follow-up

verfasst von: Alessandro Russo, Laura Bragonzoni, Claudia Trozzi, Francesco Iacono, Andrea Visani, Maurilio Marcacci

Erschienen in: Knee Surgery, Sports Traumatology, Arthroscopy | Ausgabe 2/2008

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Abstract

To determine polyethylene deformation in well-functioning meniscal bearing PCL-retaining total knee prosthesis a quantitative stereophotogrammetric analysis was carried out over 5 years’ follow-up. Polyethylene plastic deformation was obtained by tracking the intermarker distance variations of five tantalum beads inserted into the polyethylene prior to surgery in a known position. Plastic deformation occurred in the posteromedial part of the meniscal bearing. Radiostereometric analysis was a useful tool to monitor the load distribution in vivo on the polyethylene of this meniscal bearing prosthesis. This analysis revealed a very similar pattern of plastic deformation in the polyethylene insert of this prosthesis design to the wear pattern revealed with different methodologies in PCL-retaining fixed-bearing prosthesis.

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Titel: Radiostereometric measurement of polyethylene deformation pattern in meniscal bearing TKR at 5 years follow-up
verfasst von: Alessandro Russo
Laura Bragonzoni
Claudia Trozzi
Francesco Iacono
Andrea Visani
Maurilio Marcacci
Publikationsdatum: 01.02.2008
Verlag: Springer-Verlag
Erschienen in: Knee Surgery, Sports Traumatology, Arthroscopy / Ausgabe 2/2008
Print ISSN: 0942-2056
Elektronische ISSN: 1433-7347
DOI: https://doi.org/10.1007/s00167-007-0429-2

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