Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Journal articles
  4. The fixation of the cemented femoral component - Effects of stem stiffness, cement thickness and roughness of the cement-bone surface
 
research article

The fixation of the cemented femoral component - Effects of stem stiffness, cement thickness and roughness of the cement-bone surface

Ramaniraka, N. A.
•
Rakotomanana, L. R.
•
Leyvraz, P. F.  
2000
Journal of Bone and Joint Surgery-British Volume

After cemented total hip arthroplasty (THA) there may be failure at either the cement-stem or the cement-bone interface. This results from the occurrence of abnormally high shear and compressive stresses within the cement and excessive relative micromovement. We therefore evaluated micromovement and stress at the cement-bone and cement-stem interfaces for a titanium and a chromium-cobalt stem. The behaviour of both implants was similar and no substantial differences were found in the size and distribution of micromovement on either interface with respect to the stiffness of the stem. Micromovement was minimal with a cement mantle 3 to 4 mm thick but then increased with greater thickness of the cement. Abnormally high micromovement occurred when the cement was thinner than 2 mm and the stem was made of titanium. The relative decrease in surface roughness augmented slipping but decreased debonding at the cement-bone interface. Shear stress at this site did not vary significantly for the different coefficients of cement-bone friction while compressive and hoop stresses within the cement increased slightly.

  • Files
  • Details
  • Metrics
Type
research article
DOI
10.1302/0301-620X.82B2.0820297
Web of Science ID

WOS:000085917700028

Author(s)
Ramaniraka, N. A.
Rakotomanana, L. R.
Leyvraz, P. F.  
Date Issued

2000

Published in
Journal of Bone and Joint Surgery-British Volume
Volume

82B

Issue

2

Start page

297

End page

303

Subjects

total hip-arthroplasty

•

interface

•

replacement

•

prostheses

Note

Rakotomanana, LR Orthoped Hosp, Ave Pierre Decker 4, CH-1005 Lausanne, Switzerland Orthoped Hosp, CH-1005 Lausanne, Switzerland 294NQ Times Cited:31 Cited References Count:46

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LBO  
Available on Infoscience
July 25, 2006
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/232668
Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés