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Journal article

10 year patient-reported outcomes following total and minimally invasive unicompartmental knee arthroplasty: a propensity score matched cohort analysis

Abstract:

Purpose

For patients with medial compartment arthritis who have failed non-operative treatment either a total knee arthroplasty (TKA) or a unicompartmental knee arthroplasty (UKA) can be undertaken. This analysis considers how the choice between UKA and TKA affects long-term patient-reported outcome measures (PROMs).

Methods

For patients with medial compartment arthritis who have failed non-operative treatment either a total knee arthroplasty (TKA) or a unicompartmental knee arthroplasty (UKA) can be undertaken. This analysis considers how the choice between UKA and TKA affects long-term patient-reported outcome measures (PROMs).

Results

Five-hundred and ninety UKAs were matched to the same number of TKAs. Receiving UKA rather than TKA was found to be associated with better scores for OKS, including both its pain and function components, and EQ-5D, with the differences expected to grow over time. UKA was also associated with an increased likelihood of patients achieving a successful outcome, with an increased chance of attaining minimally clinically important improvements in both OKS and EQ-5D, and an ‘excellent’ OKS. In addition, for both procedures, patients aged between 60 and 70 and better pre-operative scores were associated with better post-operative outcomes.

Conclusion

Minimally-invasive UKAs performed on patients with the appropriate indications led to better patient-reported pain and function scores than TKAs performed on comparable patients. UKA can lead to better long-term quality-of-life than TKA and this should be considered alongside risk of revision when choosing between the procedures.

Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1007/s00167-016-4404-7

Authors

More by this author
Institution:
University of Oxford
Division:
MSD
Department:
NDORMS
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MSD
Department:
NDORMS
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MSD
Department:
NDORMS
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MSD
Department:
NDORMS
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MSD
Department:
NDORMS
Role:
Author


Publisher:
Springer
Journal:
Knee Surgery, Sports Traumatology, Arthroscopy More from this journal
Publication date:
2016-12-01
Acceptance date:
2016-12-07
DOI:


Keywords:
Pubs id:
pubs:664598
UUID:
uuid:281f45da-f8dd-436d-9e6e-9b9ed0633761
Local pid:
pubs:664598
Source identifiers:
664598
Deposit date:
2016-12-08
ARK identifier:

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