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A circumferentially flanged tibial tray minimizes bone-tray shear micromotion.

Barker, D S; Tanner, K E and Ryd, Leif LU (2005) In Proceedings of the Institution of Mechanical Engineers. Part H: Journal of Engineering in Medicine 219(6). p.449-456
Abstract
Aseptic loosening of the tibial component is the major complication of total knee arthroplasty There is an association between early excessive shear micromotion between the bone and the tray of the tibial component and late aseptic loosening. Using non-linear finite element analysis, whether a tibial tray with a circumferentially flanged rim and a mating cut in the proximal tibia could minimize bone-tray shear micromotion was considered. fifteen competing tray designs with various degrees of flange curvature were assessed with the aim of minimizing bone-tray shear micromotion. A trade-off was found between reducing micromotion and increasing peripheral cancellous bone stresses. It was found that, within the limitations of the study, there... (More)
Aseptic loosening of the tibial component is the major complication of total knee arthroplasty There is an association between early excessive shear micromotion between the bone and the tray of the tibial component and late aseptic loosening. Using non-linear finite element analysis, whether a tibial tray with a circumferentially flanged rim and a mating cut in the proximal tibia could minimize bone-tray shear micromotion was considered. fifteen competing tray designs with various degrees of flange curvature were assessed with the aim of minimizing bone-tray shear micromotion. A trade-off was found between reducing micromotion and increasing peripheral cancellous bone stresses. It was found that, within the limitations of the study, there was a theoretical design that could virtually eliminate micromotion due to axial loads, with minimal bone removal and without the use of screws or pegs. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
micromotion, non-cemented, stress, total knee replacement, prosthesis design, shielding
in
Proceedings of the Institution of Mechanical Engineers. Part H: Journal of Engineering in Medicine
volume
219
issue
6
pages
449 - 456
publisher
Mechanical Engineering Publications For The Institution Of Mechanical Engineers
external identifiers
  • pmid:16312104
  • wos:000233479400008
  • scopus:27744509669
ISSN
0954-4119
DOI
10.1243/095441105X34464
language
English
LU publication?
yes
id
11fda955-0d35-426f-a1cd-d75adbcfce0c (old id 147707)
alternative location
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=16312104&dopt=Abstract
date added to LUP
2007-07-12 08:50:18
date last changed
2017-07-30 04:44:18
@article{11fda955-0d35-426f-a1cd-d75adbcfce0c,
  abstract     = {Aseptic loosening of the tibial component is the major complication of total knee arthroplasty There is an association between early excessive shear micromotion between the bone and the tray of the tibial component and late aseptic loosening. Using non-linear finite element analysis, whether a tibial tray with a circumferentially flanged rim and a mating cut in the proximal tibia could minimize bone-tray shear micromotion was considered. fifteen competing tray designs with various degrees of flange curvature were assessed with the aim of minimizing bone-tray shear micromotion. A trade-off was found between reducing micromotion and increasing peripheral cancellous bone stresses. It was found that, within the limitations of the study, there was a theoretical design that could virtually eliminate micromotion due to axial loads, with minimal bone removal and without the use of screws or pegs.},
  author       = {Barker, D S and Tanner, K E and Ryd, Leif},
  issn         = {0954-4119},
  keyword      = {micromotion,non-cemented,stress,total knee replacement,prosthesis design,shielding},
  language     = {eng},
  number       = {6},
  pages        = {449--456},
  publisher    = {Mechanical Engineering Publications For The Institution Of Mechanical Engineers},
  series       = {Proceedings of the Institution of Mechanical Engineers. Part H: Journal of Engineering in Medicine},
  title        = {A circumferentially flanged tibial tray minimizes bone-tray shear micromotion.},
  url          = {http://dx.doi.org/10.1243/095441105X34464},
  volume       = {219},
  year         = {2005},
}