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Numbers
Knee » Numbers » Registered procedures
TABLE Number of registered knee arthroplasties per year of surgery (2007-2020) in the LROI in April 2021
| Type of knee arthroplasty | |||||||
| Year of surgery | Total arthroplasty (n) | Unicondylar arthroplasty (n) | Patellofemoral arthroplasty (n) | Other (n) | Unknown/ missing (n) | Revision arthroplasty (n) | Total (n) |
| 2007 | 7,035 | 774 | 47 | 43 | 840 | 595 | 9,334 |
| 2008 | 11,749 | 1,212 | 92 | 61 | 353 | 908 | 14,375 |
| 2009 | 16,790 | 1,548 | 139 | 62 | 113 | 1,300 | 19,952 |
| 2010 | 18,508 | 1,716 | 143 | 79 | 162 | 1,624 | 22,232 |
| 2011 | 19,521 | 1,586 | 116 | 81 | 126 | 1,794 | 23,224 |
| 2012 | 21,719 | 1,578 | 172 | 91 | 171 | 2,116 | 25,847 |
| 2013 | 22,306 | 1,804 | 135 | 30 | 178 | 2,309 | 26,762 |
| 2014 | 24,244 | 2,364 | 116 | 26 | 92 | 2,557 | 29,399 |
| 2015 | 24,246 | 2,692 | 157 | 10 | 39 | 2,685 | 29,829 |
| 2016 | 24,885 | 2,947 | 144 | 6 | 94 | 2,926 | 31,002 |
| 2017 | 25,554 | 3,662 | 168 | 19 | 24 | 2,997 | 32,424 |
| 2018 | 25,838 | 4,073 | 183 | 17 | 12 | 2,931 | 33,054 |
| 2019 | 25,881 | 4,892 | 175 | 25 | 21 | 3,096 | 34,090 |
| 2020 | 19,501 | 4,677 | 158 | 15 | 8 | 2,452 | 26,811 |
| Total | 287,777 | 35,525 | 1,945 | 565 | 2,233 | 30,290 | 358,335 |
© LROI 2021
The LROI is nearly complete as of 2010. Therefore, a dotted line was inserted between 2009 and 2010.
Knee » Numbers » Type of procedures
FIGURE Number of primary knee arthroplasties and knee revision arthroplasties registered in the LROI in the Netherlands in 2010-2020
Year
Total
Type of procedure (n)
Primary knee
20,608
21,430
23,731
24,453
26,842
27,144
28,076
29,427
30,123
30,994
24,359
287,187
Knee revision
1,624
1,794
2,116
2,309
2,557
2,685
2,926
2,997
2,931
3,096
2,452
27,487
Total:
22,232
23,224
25,847
26,762
29,399
29,829
31,002
32,424
33,054
34,090
26,811
314,674
© LROI 2021
Out of 24,359 primary knee arthroplasties that were performed in 2020,
3% (n=688) was performed bilaterally.
Knee » Numbers » Type of procedure per hospital
Knee » Numbers » Type of procedure by type of hospital
FIGURE Primary knee arthroplasties and knee revision arthroplasties (proportion [%] per category) by type of hospital in the Netherlands in 2020
Type of hospital
Type of procedure (%)
Primary knee
90.37
59.46
95.97
90.85
90.85
Knee revision
9.63
40.54
4.03
9.15
9.15
Total (n):
21,110
5,183
26,811
518
Please note: In 2020, 68 general hospitals, 7 UMCs and 19 private hospitals performed knee arthroplasties.
General: general hospital; UMC: university medical centre; Private: private hospital.
© LROI 2021
Knee » Numbers » Type of primary knee prosthesis by type of hospital
FIGURE Type of hospital (proportion [%] per catergory) by type of primary knee arthroplasty in the Netherlands in 2020
Type of primary KA
Type of hospital (%)
General
80.06
70.96
81.01
78.32
78.32
UMC
1.45
0.41
3.16
1.26
1.26
Private
18.50
28.63
15.82
20.43
20.43
Total (n):
158
19,501
24,336
4,677
Please note: In 2020, 15 (0.06%) primary knee arthroplasties were registered in the LROI as other type of primary knee arthroplasty. Of 8 (0.03%) primary knee arthroplasties, the type of prosthesis was not registered.
KA: knee arthroplasty; TKA: total knee arthroplasty; UKA: unicondylar knee arthroplasty; PKA: patellofemoral knee arthroplasty.
General: general hospital; UMC: university medical centre; Private: private hospital.
© LROI 2021
Knee » Numbers » Type of primary knee prosthesis by age category
FIGURE Type of primary knee arthroplasty (proportion [%] per category) of patients who underwent a primary knee arthroplasty by age category in the Netherlands in 2020
Age category
Type of primary knee arthroplasty (%)
TKA
57.48
68.67
77.26
86.01
91.85
80.08
80.08
UKA
34.19
29.64
22.25
13.77
7.93
19.21
19.21
PKA
8.33
1.64
0.45
0.17
0.00
0.65
0.65
Other
0.00
0.05
0.03
0.06
0.22
0.06
0.06
Total (n):
468
2,295
3,968
8,642
8,977
24,350
KA: knee arthroplasty; TKA: total knee arthroplasty; UKA: unicondylar knee arthroplasty; PKA: patellofemoral knee arthroplasty.
© LROI 2021