Static shear strength between polished stem and seven commercial acrylic bone cements

Hongyu Zhang, Leigh Brown, Liam Blunt

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The stem-cement interface is one of the most significant sites in cemented total hip replacement and has long been implicated in failure of the whole joint system. However, shear strength at this interface has rarely been compared across a range of commercially available bone cements. The present study seeks to address this issue by carrying out a comparative study. The results indicated that the static shear strength was more dependent on cement type than cement viscosity and volume. However, both cement type and viscosity were contributory factors on porosity and micropore size in the cement surface. There was no significant difference between Simplex P and Simplex P with Tobramycin. Although the bone cements were all hand mixed in this study, the static shear strength was significantly larger than the values recorded by other researchers, and the porosity and micropore size showed much lower values. Bone cement transfer films were detected on the stem surface, typically about 4-10 μm thick. They were considered to be an important factor contributing to high friction at the stem-cement interface after initial debonding.

Original languageEnglish
Pages (from-to)591-599
Number of pages9
JournalJournal of Materials Science: Materials in Medicine
Volume19
Issue number2
Early online date10 Jul 2007
DOIs
Publication statusPublished - Feb 2008

Fingerprint Dive into the research topics of 'Static shear strength between polished stem and seven commercial acrylic bone cements'. Together they form a unique fingerprint.

Cite this