Mechanical properties of retrieved highly cross-linked crossfire liners after short-term implantation.
Publication/Presentation Date
10-1-2005
Abstract
This study reports on detailed analyses of retrieved, annealed cross-linked liners. Twelve cross-linked liners (Crossfire, Stryker Orthopaedics, Mahwah, NJ) of the same Omnifit design were retrieved at revision surgery by one institution after an average 1.9 years (0.02-4.8 years) in vivo. In each case, the revision surgery was performed for reasons unrelated to wear. The mechanical properties and extent of oxidation of all inserts were characterized using a standard small punch test and measurement of the oxidation index. Results indicated that there was no association between implantation time and either mechanical properties or extent of oxidation for the inserts near the worn bearing surface. Slight variation in properties was observed as a function of sampling location, with the properties near the unworn surface displaying the greatest relative variability. We conclude that the variability in polyethylene properties observed in this small study was not clinically significant for these short-term-implanted, annealed cross-linked liners.
Volume
20
Issue
7
First Page
840
Last Page
849
ISSN
0883-5403
Published In/Presented At
Kurtz, S. M., Hozack, W., Turner, J., Purtill, J., MacDonald, D., Sharkey, P., Parvizi, J., Manley, M., & Rothman, R. (2005). Mechanical properties of retrieved highly cross-linked crossfire liners after short-term implantation. The Journal of arthroplasty, 20(7), 840–849. https://doi.org/10.1016/j.arth.2005.07.015
Disciplines
Business Administration, Management, and Operations | Health and Medical Administration | Management Sciences and Quantitative Methods
PubMedID
16230233
Department(s)
Administration and Leadership
Document Type
Article