Stress shielding in bone of a bone-cement interface

Qinghang Zhang, Andrew Cossey, Jie Tong

Research output: Contribution to journalArticlepeer-review

323 Downloads (Pure)

Abstract

Cementation is one of the main fixation methods used in joint replacement surgeries such as Total Knee Replacement (TKR). This work was prompted by a recent retrieval study [1] and [2], which shows losses up to 75% of the bone stock at the bone-cement interface ten years post TKR. It aims to examine the effects of cementation on the stress shielding of the interfacing bone, when the influence of an implant is removed.

A micromechanics finite element study of a generic bone-cement interface is presented here, where bone elements in the partially and the fully interdigitated regions were evaluated under selected load cases. The results revealed significant stress shielding effect in the bone of all bone-cement interface regions, particularly in fully interdigitated region. This finding may be useful in the studies of implant fixation and other related orthopedic treatment strategies.
Original languageEnglish
JournalMedical Engineering & Physics
DOIs
Publication statusPublished - 18 Feb 2016

Keywords

  • bone-cement interface
  • stress shielding
  • bone resorption
  • finite element analysis

Fingerprint

Dive into the research topics of 'Stress shielding in bone of a bone-cement interface'. Together they form a unique fingerprint.

Cite this