Journal article
Ten-year survival and seven-year functional results of cementless Oxford unicompartmental knee replacement. A prospective consecutive series of our first 1000 cases
- Abstract:
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Background
Cementless fixation is an alternative to cemented unicompartmental knee replacement (UKR), with several advantages over cementation.
This study reports the ten-year survival and seven-year clinical outcome of cementless Oxford unicompartmental knee replacement (OUKR).
Patients and Methods
This prospective study describes the clinical outcome and survival of first 1000 consecutive cementless medial OUKRs implanted at two centres for recommended indications.
Results
The 10-year survival was 97% (CI 95%: 92-100%), with 25 knees being revised. The commonest reason for revision was progression of arthritis laterally, which occurred in 9 knees, followed by primary dislocation of the bearing, which occurred in 6 knees. There were two dislocations secondary to trauma and a ruptured ACL, and two tibial plateau fractures. Although there were no definite cases of aseptic loosening, two early revisions were related to tibial fixation: one for pain and a radiolucent line and one for incomplete seating of the component with a radiolucent line. In four revisions the underlying problem was not certain: two were possibly due patello-femoral degeneration, one possibly tibial component overhang and one for unexplained pain. There were no deep infections. The mean OKS improved from 23 (SD 8) to 42 (SD 7) at a mean follow-up of 7.0 years (p < 0.001). There was no significant difference in survival or clinical outcome between the designer and independent centre.
Conclusions
The cementless OUKR is a safe and reproducible procedure with excellent 10-year survival and clinical results in the hands of both the designer and independent surgeons.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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- Files:
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(Preview, Accepted manuscript, pdf, 344.1KB, Terms of use)
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- Publisher copy:
- 10.1016/j.knee.2018.07.012
Authors
- Publisher:
- Elsevier
- Journal:
- Knee More from this journal
- Volume:
- 25
- Issue:
- 6
- Pages:
- 1231-1237
- Publication date:
- 2018-08-24
- Acceptance date:
- 2018-07-17
- DOI:
- EISSN:
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1873-5800
- ISSN:
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0968-0160
- Pubs id:
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pubs:891712
- UUID:
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uuid:691f213b-b64e-4c62-bedf-9e2e7a6b12ed
- Local pid:
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pubs:891712
- Source identifiers:
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891712
- Deposit date:
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2018-07-30
Terms of use
- Copyright holder:
- Elsevier BV
- Copyright date:
- 2018
- Notes:
- © 2018 Published by Elsevier B.V. This is the accepted manuscript version of the article. The final version is available online from Elsevier at: 10.1016/j.knee.2018.07.012
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