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Numbers
Knee » Numbers » Registered procedures
TABLE Number of registered knee arthroplasties per year of surgery (2007-2022) in the LROI in April 2023
| Type of knee arthroplasty | ||||||||
| Year of surgery | Total arthroplasty (n) | Unicondylar arthroplasty (n) | Patellofemoral arthroplasty (n) | Unknown/ missing (n) | Revision arthroplasty (n) | Total (n) | ||
| 2007 | 7,035 | 780 | 47 | 878 | 595 | 9,335 | ||
| 2008 | 11,747 | 1,221 | 92 | 405 | 908 | 14,373 | ||
| 2009 | 16,792 | 1,547 | 139 | 175 | 1,300 | 19,953 | ||
| 2010 | 18,507 | 1,716 | 143 | 241 | 1,624 | 22,231 | ||
| 2011 | 19,521 | 1,586 | 116 | 207 | 1,794 | 23,224 | ||
| 2012 | 21,727 | 1,578 | 171 | 255 | 2,117 | 25,848 | ||
| 2013 | 22,302 | 1,805 | 135 | 207 | 2,309 | 26,758 | ||
| 2014 | 24,242 | 2,364 | 116 | 118 | 2,556 | 29,396 | ||
| 2015 | 24,246 | 2,693 | 156 | 48 | 2,686 | 29,829 | ||
| 2016 | 24,884 | 2,947 | 144 | 100 | 2,926 | 31,001 | ||
| 2017 | 25,555 | 3,662 | 168 | 43 | 2,997 | 32,425 | ||
| 2018 | 25,835 | 4,073 | 183 | 29 | 2,930 | 33,050 | ||
| 2019 | 25,886 | 4,888 | 175 | 43 | 3,101 | 34,093 | ||
| 2020 | 19,615 | 4,725 | 158 | 22 | 2,496 | 27,016 | ||
| 2021 | 21,514 | 5,666 | 108 | 15 | 2,601 | 29,904 | ||
| 2022 | 26,708 | 6,972 | 116 | 26 | 2,985 | 36,807 | ||
| Total | 336,116 | 48,223 | 2,167 | 2,812 | 35,925 | 425,243 | ||
© LROI 2023
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 2013-2022
Year
Total
Type of procedure (n)
Primary knee
24,449
26,840
27,143
28,075
29,428
30,120
30,992
24,520
27,303
33,822
282,692
Knee revision
2,309
2,556
2,686
2,926
2,997
2,930
3,101
2,496
2,601
2,985
27,587
Total:
26,758
29,396
29,829
31,001
32,425
33,050
34,093
27,016
29,904
36,807
310,279
© LROI 2023
Out of 33,822 primary knee arthroplasties that were performed in 2022,
3% (n=1022) was performed bilaterally.
Knee » Numbers » Type of procedure per hospital
Knee » Numbers » Type of hospital - primary
FIGURE Trend (proportion [%] per year) in type of hospital performing primary total knee arthroplasties in the Netherlands in 2012-2021
Year
Type of hospital (%)
General hospital
89.30
88.00
88.03
87.08
86.67
86.05
85.07
84.08
80.15
76.44
85.22
85.22
Private hospital
7.48
8.90
9.19
10.24
10.71
11.67
13.05
13.96
18.41
22.50
12.47
12.47
University Medical Center
3.22
3.09
2.78
2.68
2.62
2.28
1.88
1.96
1.44
1.06
2.31
2.31
Total (n):
235,738
21,726
22,304
24,243
24,246
24,884
25,554
25,837
25,885
19,615
21,444
Please note: The number of general hospitals that performed primary total knee arthroplasties decreased from 72 to 64 between 2012-2021; the number of private hospitals increased from 11 to 19 and the number of University Medical Centers remained 7 between 2012-2021.
TKA: total knee arthroplasty.
© LROI 2022
Knee » Numbers » Type of hospital - primary
FIGURE Trend (proportion [%] per year) in type of hospital performing primary total knee arthroplasties in the Netherlands in 2013-2022
Year
Type of hospital (%)
General hospital
88.01
88.03
87.08
86.67
86.05
85.07
84.08
80.15
76.51
77.69
84.02
84.02
Private hospital
8.90
9.19
10.24
10.71
11.67
13.05
13.96
18.41
22.43
21.12
13.87
13.87
University Medical Center
3.09
2.78
2.68
2.62
2.28
1.88
1.96
1.44
1.06
1.19
2.11
2.11
Total (n):
240,787
22,302
24,242
24,246
24,884
25,555
25,835
25,886
19,615
21,514
26,708
Please note: The number of general hospitals that performed primary total knee arthroplasties decreased from 72 to 64 between 2013-2022; the number of private hospitals increased from 11 to 17 and the number of University Medical Centers remained 7 between 2013-2022.
TKA: total knee arthroplasty.
© LROI 2023
Knee » Numbers » Type of hospital - revision
FIGURE Trend (proportion [%] per year) in type of hospital performing knee revision arthroplasties in the Netherlands in 2013-2022
Year
Type of hospital (%)
General hospital
84.58
84.74
84.51
82.19
82.15
81.54
82.36
82.93
77.66
80.13
82.22
82.22
Private hospital
7.80
6.69
5.81
7.38
7.14
8.81
8.51
8.49
12.46
10.85
8.41
8.41
University Medical Center
7.62
8.57
9.68
10.42
10.71
9.66
9.13
8.57
9.88
9.01
9.38
9.38
Total (n):
27,587
2,309
2,556
2,686
2,926
2,997
2,930
3,101
2,496
2,601
2,985
Please note: The number of general hospitals that performed knee revision arthroplasties decreased from 72 to 63 between 2013-2022; the number of private hospitals increased from 7 to 13 and the number of University Medical Centers remained 7 between 2013-2022.
RA: revision arthroplasty.
© LROI 2023
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 2022
Type of hospital
Type of procedure (%)
Primary knee
91.47
56.75
96.02
91.89
91.89
Knee revision
8.53
43.25
3.98
8.11
8.11
Total (n):
28,053
8,132
36,807
622
Please note: in 2022, 64 general hospitals, 7 UMCs and 17 private hospitals performed knee arthroplasties.
General: general hospital; UMC: university medical centre; Private: private hospital.
© LROI 2023
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 2022
Type of primary KA
Type of hospital (%)
General hospital
77.69
69.03
69.83
75.88
75.88
University Medical Center
1.19
0.43
1.72
1.04
1.04
Private hospital
21.12
30.54
28.45
23.09
23.09
Total (n):
116
26,708
6,972
33,796
Please note: 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 2023
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 2022
Age category
Type of primary knee arthroplasty (%)
Primary TKA
57.75
66.86
76.20
83.92
90.14
79.03
79.03
Primary UKA
35.47
32.19
23.60
16.02
9.80
20.63
20.63
Primary PKA
6.78
0.94
0.20
0.06
0.06
0.34
0.34
Total (n):
516
3,611
5,091
11,330
13,248
33,796
KA: knee arthroplasty; TKA: total knee arthroplasty; UKA: unicondylar knee arthroplasty; PKA: patellofemoral knee arthroplasty.
© LROI 2023