fulltext.study @t Gmail

In vivo behavior of acrylic bone cement in total hip arthroplasty

Paper ID Volume ID Publish Year Pages File Format Full-Text
12301 788 2006 6 PDF Available
Title
In vivo behavior of acrylic bone cement in total hip arthroplasty
Abstract

Polymethylmethacrylate (PMMA) bone cement serves as the primary fixation material between bone and the prosthetic component in cemented total hip arthroplasty. In vivo degradation of bone cement may lead to a decrease in mechanical properties of PMMA and result in aseptic loosening. However, other factors such as porosity and location of the cement relative to the bone implant interface may also contribute to mechanical behavior in vivo. This study investigated the mechanical properties of Simplex® cement retrieved from 43 patients undergoing revision total hip arthroplasty. The time in vivo was between 1 month and 27 years. The variables studied included fracture toughness (KIC), porosity, molecular weight, time in vivo of the cement, and relative in vivo location of the cement with respect to the implant and bone. KIC did not correlate with time in vivo of the samples or with molecular weight. This suggests that time in vivo may not be the limiting factor in the mechanical integrity of the bone cement, A significant and inverse relationship was found between porosity and KIC. This implies that porosity is the most important factor in the mechanical behavior of bone cement during in vivo use.

Keywords
Bone cement; In vivo degradation; Fracture toughness; Porosity
First Page Preview
In vivo behavior of acrylic bone cement in total hip arthroplasty
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 27, Issue 2, January 2006, Pages 256–261
Authors
, , , , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us