Cementation of a polyethylene liner into a metal shell.

Journal Article

As the number of revision hip arthroplasties continues to increase, alternative reconstructive options may be necessary. Cementation of a polyethylene liner into a well-fixed metal acetabular shell has previously been reported to save bone stock and enhance the pullout strength. This study analyzed whether cementation of various types of mechanically modified or nonmodified liners into a metal shell altered wear characteristics when compared with noncemented modular liners. The authors used nonirradiated and highly cross-linked polyethylene liners that were mechanically modified or left unmodified. Wear in both nonirradiated and highly cross-linked liners was not affected by the cementing process. Wear of the highly cross-linked polyethylene liners was significantly less when compared with the nonirradiated liners. This laboratory study provides quantitative data supporting previous qualitative studies of cementing a polyethylene liner into a metal-backed acetabular shell. Based on this study, cementation of a mechanically modified liner did not affect wear in this study, which simulated 3 years of activity.

Full Text

Duke Authors

Cited Authors

  • Delanois, RE; Seyler, TM; Essner, A; Schmidig, G; Mont, MA

Published Date

  • August 2007

Published In

Volume / Issue

  • 22 / 5

Start / End Page

  • 732 - 737

PubMed ID

  • 17689784

Electronic International Standard Serial Number (EISSN)

  • 1532-8406

International Standard Serial Number (ISSN)

  • 0883-5403

Digital Object Identifier (DOI)

  • 10.1016/j.arth.2006.10.011

Language

  • eng