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Data Quality
Revision within 1 and 3 years
Knee » Survival » Revision within 1 and 3 years » By type of revision
TABLE Cumulative 1-year and 3-year revision percentage of primary total knee arthroplasties by type of revision in the Netherlands in 2013-2017 (n=120,845)
Cumulative 1-year revision percentage | Cumulative 3-year revision percentage | |||
Competing Risk (95% CI) | Kaplan Meier (95% CI) | Competing Risk (95% CI) | Kaplan Meier (95% CI) | |
Any type of revision¹ | 1.1 (1.0-1.2) | 1.0 (0.9-1.1) | 3.5 (3.4-3.6) | 3.5 (3.4-3.6) |
Major revision² | 0.4 (0.4-0.5) | 0.4 (0.3-0.4) | 1.5 (1.5-1.6) | 1.5 (1.5-1.6) |
Minor revision³ | 0.7 (0.6-0.7) | 0.6 (0.6-0.7) | 1.9 (1.8-2.0) | 1.9 (1.8-1.9) |
¹ Any type of revision includes minor and major revisions as well as revision procedures that could not be classified as minor or major revision.
² Revision of at least the femur or tibia component.
³ Only insert and/or patella exchange (including patella addition).
CI: confidence interval.
© LROI 2021
In 2013-2017, 3,687 (3.1%) primary TKAs were implanted in patients who died within three years after the primary procedure.
Knee » Survival » Revision within 1 and 3 years » Overall revision per hospital
FIGURE Funnel plot of proportion of knee revision arthroplasties within three years after a total knee arthroplasty per hospital in the Netherlands in 2013-2017 (n=120,301)
Please note: The proportion of revisions within 3 years per hospital were adjusted for casemix factors age, gender, ASA score and diagnosis (osteoarthritis versus other).
TKA: total knee arthroplasty; CL: control limits; CI: confidence interval.
The mean 3-years revision percentage is 3.5 (95% CI: 3.4-3.6 ) in the Netherlands in 2013-2017.
Control limits indicate the plausible range of outcome if all hospitals perform equally well.
Knee » Survival » Revision within 1 and 3 years » Major revision per hospital
FIGURE Funnel plot of proportion of knee major revision arthroplasties within three years after a total knee arthroplasty per hospital in the Netherlands in 2013-2017 (n=120,301)
Please note: Major revision is defined as revision of at least femur or tibia component.
Please note: The proportion of revisions within 3 years per hospital were adjusted for casemix factors age, gender, ASA score and diagnosis (osteoarthritis versus other).
TKA: total knee arthroplasty; CL: control limits; CI: confidence interval.
The mean 3-years major revision percentage is 1.5 (95% CI: 1.5-1.6) in the Netherlands in 2013-2017.
Control limits indicate the plausible range of outcome if all hospitals perform equally well.
Knee » Survival » Revision within 1 and 3 years » Reasons for revision by type of revision
TABLE Reasons for revision within three years in patients that underwent a knee revision arthroplasty by type of revision in the Netherlands in 2013-2017
Major revision¹ (n=1,871) | Minor revision² (n=2,294) | Any type of revision³ (n=4,272) | |
Reasons for revision | Proportion4 (%) | Proportion4 (%) | Proportion4 (%) |
Patellar pain | 9.5 | 46.8 | 30.0 |
Instability | 32.7 | 23.9 | 27.2 |
Infection | 17.3 | 21.0 | 19.4 |
Loosening of tibia component | 35.3 | 0.7 | 16.0 |
Malalignment | 28.9 | 1.6 | 13.6 |
Arthrofibrosis | 7.7 | 6.7 | 7.2 |
Loosening of femur component | 9.2 | 0.2 | 4.1 |
Patellar dislocation | 2.4 | 3.7 | 3.1 |
Periprosthetic fracture | 4.4 | 0.3 | 2.2 |
Revision after knee removal | 3.6 | 0.2 | 1.7 |
Insert wear | 0.9 | 2.2 | 1.6 |
Loosening of patella component | 0.4 | 0.9 | 0.7 |
Progression of osteoarthritis | 0.3 | 0.6 | 0.5 |
Other | 7.4 | 8.6 | 8.1 |
¹ Revision of at least the femur or tibia component.
² Only insert and/or patella exchange (including patella addition).
³ Any type of revision includes minor and major revisions as well as revision procedures that could not be classified as minor or major revision.
4 One patient may have more than one reason for revision or re-surgery. As such, the total proportion is over 100%.
© LROI 2021
Knee » Survival » Revision within 1 and 3 years » Type of revision per year
TABLE Type of revision within one year after a primary total knee arthroplasty in the Netherlands in 2013-2017 (n=120,845)
Type of revision | Within 1 year | Within 3 years |
Proportion (%) | Proportion (%) | |
Major revisions | 0.4 | 1.5 |
Only femur component | 0.1 | 0.2 |
Only tibia component | 0.1 | 0.3 |
Femur and tibia component | 0.3 | 1.1 |
Minor revisions | 0.7 | 1.9 |
DAIR | 0.3 | 0.4 |
No DAIR | 0.2 | 0.8 |
Patella addition | 0.1 | 0.7 |
Major revision: revision of at least the femur or tibia component.
Minor revision: only inlay and/or patella exchange.
DAIR: minor revision with infection as reason for revision.
TKA: total knee arthroplasty; DAIR: debridement, antibiotics and implant retention.
© LROI 2021
Knee » Survival » Revision within 1 and 3 years » Time after primary TKA
TABLE Time after primary total knee arthroplasty until short-term revision in the Netherlands in 2013-2017 (n=120,845)
Time after primary TKA | Percentage revisions (%) |
Day 0-29 | 0.3 |
Day 30-182 | 0.3 |
Day 183-364 | 0.6 |
Day 365-730 (second year) | 1.5 |
Day 731-1095 (third year) | 0.9 |
TKA: total knee arthroplasty;
© LROI 2021