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Higher cumulative revision rate of knee arthroplasties in younger patients with osteoarthritis

Harrysson, OLA; Robertsson, Otto LU and Nayfeh, JF (2004) In Clinical Orthopaedics and Related Research p.162-168
Abstract
This study was designed to test the hypothesis that younger patients treated for osteoarthritis and similar conditions using total knee arthroplasty and unicompartmental knee arthroplasty have a lower implant survival rate when compared with older patients. Previous studies have been done on a small number of patients and only included the younger patients. In many cases patients treated for rheumatoid arthritis have been included in the studies and exceptional survival rates have been reported. The current study compared the cumulative revision rate of the components in 33,251 patients older than 60 years and 2606 patients younger than 60 years treated with total knee arthroplasty or unicompartmental knee arthroplasty for osteoarthritis... (More)
This study was designed to test the hypothesis that younger patients treated for osteoarthritis and similar conditions using total knee arthroplasty and unicompartmental knee arthroplasty have a lower implant survival rate when compared with older patients. Previous studies have been done on a small number of patients and only included the younger patients. In many cases patients treated for rheumatoid arthritis have been included in the studies and exceptional survival rates have been reported. The current study compared the cumulative revision rate of the components in 33,251 patients older than 60 years and 2606 patients younger than 60 years treated with total knee arthroplasty or unicompartmental knee arthroplasty for osteoarthritis or similar conditions. Cox regression was used to compare the risk for revision between the two age groups and between gender and the effect of year of operation. The results showed a higher cumulative revision rate for the group of younger patients in all statistical analyses and the risk ratio for revision was significantly lower for the group of older patients. The risk for revision decreased for both groups when considering the year of surgery. This is probably attributable to better implant components and surgical techniques. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Clinical Orthopaedics and Related Research
issue
421
pages
162 - 168
publisher
Lippincott Williams & Wilkins
external identifiers
  • wos:000221214900027
  • scopus:2342587431
ISSN
0009-921X
DOI
10.1097/01.blo.0000127115.05754.ce
language
English
LU publication?
yes
id
8fb06a12-3474-4bd8-9010-440c5e547775 (old id 279458)
date added to LUP
2007-10-29 14:37:03
date last changed
2017-12-10 03:42:13
@article{8fb06a12-3474-4bd8-9010-440c5e547775,
  abstract     = {This study was designed to test the hypothesis that younger patients treated for osteoarthritis and similar conditions using total knee arthroplasty and unicompartmental knee arthroplasty have a lower implant survival rate when compared with older patients. Previous studies have been done on a small number of patients and only included the younger patients. In many cases patients treated for rheumatoid arthritis have been included in the studies and exceptional survival rates have been reported. The current study compared the cumulative revision rate of the components in 33,251 patients older than 60 years and 2606 patients younger than 60 years treated with total knee arthroplasty or unicompartmental knee arthroplasty for osteoarthritis or similar conditions. Cox regression was used to compare the risk for revision between the two age groups and between gender and the effect of year of operation. The results showed a higher cumulative revision rate for the group of younger patients in all statistical analyses and the risk ratio for revision was significantly lower for the group of older patients. The risk for revision decreased for both groups when considering the year of surgery. This is probably attributable to better implant components and surgical techniques.},
  author       = {Harrysson, OLA and Robertsson, Otto and Nayfeh, JF},
  issn         = {0009-921X},
  language     = {eng},
  number       = {421},
  pages        = {162--168},
  publisher    = {Lippincott Williams & Wilkins},
  series       = {Clinical Orthopaedics and Related Research},
  title        = {Higher cumulative revision rate of knee arthroplasties in younger patients with osteoarthritis},
  url          = {http://dx.doi.org/10.1097/01.blo.0000127115.05754.ce},
  year         = {2004},
}