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Hydroxyapatite augmentation of the porous coating improves fixation of tibial components. A randomised RSA study in 116 patients

Önsten, Ingemar LU ; Nordqvist, A; Carlsson, Åke LU ; Besjakov, Jack LU and Shott, S (1998) In Journal of Bone and Joint Surgery 80-B(3). p.417-425
Abstract
In a single-blind, randomised series of knee replacements in 116 patients, we used radiostereometric analysis (RSA) to measure micromotion in three types of tibial implant fixation for two years after knee replacement. We compared hydroxyapatite-augmented porous coating, porous coating, and cemented fixation of the same design of tibial component. At one to two years, porous-coated implants migrated at a statistically significantly higher rate than hydroxyapatite-augmented or cemented implants. There was no significant difference between hydroxyapatite-coated and cemented implants. We conclude that hydroxyapatite augmentation may offer a clinically relevant advantage over a simple porous coating for tibial component fixation, but is no... (More)
In a single-blind, randomised series of knee replacements in 116 patients, we used radiostereometric analysis (RSA) to measure micromotion in three types of tibial implant fixation for two years after knee replacement. We compared hydroxyapatite-augmented porous coating, porous coating, and cemented fixation of the same design of tibial component. At one to two years, porous-coated implants migrated at a statistically significantly higher rate than hydroxyapatite-augmented or cemented implants. There was no significant difference between hydroxyapatite-coated and cemented implants. We conclude that hydroxyapatite augmentation may offer a clinically relevant advantage over a simple porous coating for tibial component fixation, but is no better than cemented fixation. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Bone and Joint Surgery
volume
80-B
issue
3
pages
417 - 425
publisher
British Editorial Society of Bone & Joint Surgery
external identifiers
  • pmid:9619929
ISSN
2044-5377
language
English
LU publication?
yes
id
77a1c4c4-226a-4250-9001-d0c9ff21364c (old id 1113517)
alternative location
http://www.jbjs.org.uk/cgi/reprint/80-B/3/417
date added to LUP
2008-07-15 11:22:20
date last changed
2016-04-15 19:23:42
@article{77a1c4c4-226a-4250-9001-d0c9ff21364c,
  abstract     = {In a single-blind, randomised series of knee replacements in 116 patients, we used radiostereometric analysis (RSA) to measure micromotion in three types of tibial implant fixation for two years after knee replacement. We compared hydroxyapatite-augmented porous coating, porous coating, and cemented fixation of the same design of tibial component. At one to two years, porous-coated implants migrated at a statistically significantly higher rate than hydroxyapatite-augmented or cemented implants. There was no significant difference between hydroxyapatite-coated and cemented implants. We conclude that hydroxyapatite augmentation may offer a clinically relevant advantage over a simple porous coating for tibial component fixation, but is no better than cemented fixation.},
  author       = {Önsten, Ingemar and Nordqvist, A and Carlsson, Åke and Besjakov, Jack and Shott, S},
  issn         = {2044-5377},
  language     = {eng},
  number       = {3},
  pages        = {417--425},
  publisher    = {British Editorial Society of Bone & Joint Surgery},
  series       = {Journal of Bone and Joint Surgery},
  title        = {Hydroxyapatite augmentation of the porous coating improves fixation of tibial components. A randomised RSA study in 116 patients},
  volume       = {80-B},
  year         = {1998},
}