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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: British Volume 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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publication status
published
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in
Journal of Bone and Joint Surgery: British Volume
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
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Medical Radiology Unit (013241410), Reconstructive Surgery (013240300)
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
2016-04-01 11:56:55
date last changed
2018-11-21 20:02:04
@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: British Volume},
  title        = {Hydroxyapatite augmentation of the porous coating improves fixation of tibial components. A randomised RSA study in 116 patients},
  url          = {http://www.jbjs.org.uk/cgi/reprint/80-B/3/417},
  volume       = {80-B},
  year         = {1998},
}