2014
DOI: 10.1007/s00264-014-2297-y
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Toward the interpretation of the combined effect of size and body weight on the tribological performance of total knee prostheses

Abstract: Purpose The research questions of the present study were: (1) Is total knee prosthesis wear behaviour influenced by implant size, body weight and their combined effect? (2) Are these findings significant and helpful from a clinical point of view? Methods Two very different sizes of the same total knee prosthesis (TKP), previously tested with ISO 14243 parameters, were tested on a knee simulator for a further two million cycles using a modified ISO 14243 load waveform. Roughness examination was performed on the… Show more

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Cited by 15 publications
(9 citation statements)
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“…The Raman analyses confirmed the results obtained in in vitro tests (Battaglia et al, 2014;Affatato et al, 2013;Tozzi et al, accepted for publication); in our previous studies we investigated the effect of the implant size and applied load on the morphology changes induced by wear on UHMWPE inserts. Raman spectroscopy showed a more significant polymer degradation in the smaller prostheses, suggesting that a lower contact area is responsible for a higher wear at the molecular level.…”
Section: Discussionsupporting
confidence: 84%
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“…The Raman analyses confirmed the results obtained in in vitro tests (Battaglia et al, 2014;Affatato et al, 2013;Tozzi et al, accepted for publication); in our previous studies we investigated the effect of the implant size and applied load on the morphology changes induced by wear on UHMWPE inserts. Raman spectroscopy showed a more significant polymer degradation in the smaller prostheses, suggesting that a lower contact area is responsible for a higher wear at the molecular level.…”
Section: Discussionsupporting
confidence: 84%
“…As already demonstrated in-vitro, the body weight and implant size are relevant factors to the understanding of TKA wear behaviour (Battaglia et al, 2014;Affatato et al, 2013). The main goal of this study was to evaluate the combined effect of BMI and implant size on wear in order to better understand the TKA performances.…”
Section: Discussionmentioning
confidence: 88%
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