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Survival UKA
Knee » Survival UKA » UKA
FIGURE Cumulative revision percentage of unicondylar knee arthroplasties by type of revision in the Netherlands in 2007-2021 (n=38,992)
TABLE Cumulative revision percentages
Number at risk (n) | Competing Risk¹ (95% CI) | Kaplan Meier (95% CI) | |
Any type of revision | |||
1-year revision (%) | 44,179 | 1.9 (1.8-2.0) | 2.1 (2.0-2.3) |
3-year revision (%) | 31,057 | 5.3 (5.1-5.5) | 5.6 (5.3-5.9) |
5-year revision (%) | 20,833 | 7.2 (7.0-7.5) | 7.6 (7.3-7.9) |
10-year revision (%) | 7,451 | 11.4 (11.0-11.8) | 12.5 (11.9-13.0) |
13-year revision (%) | 2,688 | 13.1 (12.6-13.7) | 15.1 (14.3-15.8) |
Major revision² | |||
1-year revision (%) | 44,484 | 1.2 (1.1-1.3) | 1.3 (1.2-1.4) |
3-year revision (%) | 31,453 | 4.0 (3.9-4.2) | 4.4 (4.2-4.6) |
5-year revision (%) | 21,136 | 5.7 (5.5-6.0) | 6.2 (5.9-6.5) |
10-year revision (%) | 7,584 | 9.6 (9.2-10.0) | 10.8 (10.3-11.3) |
13-year revision (%) | 2,728 | 11.3 (10.8-11.8) | 13.3 (12.6-14.0) |
Minor revision³ | |||
1-year revision (%) | 44,697 | 0.8 (0.7-0.9) | 0.9 (0.8-1.0) |
3-year revision (%) | 32,485 | 1.4 (1.3-1.5) | 1.4 (1.3-1.5) |
5-year revision (%) | 22,421 | 1.7 (1.6-1.8) | 1.8 (1.6-1.9) |
10-year revision (%) | 8,577 | 2.1 (1.9-2.3) | 2.2 (2.0-2.3) |
13-year revision (%) | 3,073 | 2.3 (2.1-2.5) | 2.4 (2.1-2.6) |
¹ The cumulative revision percentage using the competing risk method is shown in the figure.
² First revision of the femur or tibia component, regardless of whether a minor revision has already taken place. Therefor, the first three revision procedures were reviewed.
³Only insert and/or patella exchange (including patella addition).
UKA: unicondylarl knee arthroplasty; CI: confidence interval.
© LROI 2022
In 2007-2021, 1,659 (4.3%) primary UKAs were implanted in patients who died within thirteen years after the primary diagnosis.
Knee » Survival UKA » UKA by procedure year