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Data Quality
Materials
Knee » Total knee arthroplasty » Materials » Femur component
FIGURE Trend (proportion [%] per year) in femur material in primary total knee arthroplasties in the Netherlands in 2012-2021
Year
Femur material (%)
Cobalt chrome
96.34
96.54
96.19
95.41
95.07
95.14
95.36
94.69
95.94
95.61
95.60
95.60
Cobalt Chrome/Titanium
1.41
1.45
1.44
2.22
2.60
2.72
2.96
3.27
2.70
2.86
2.37
2.37
Oxidized Zirconium
2.17
1.94
2.31
2.22
2.17
1.98
1.50
1.81
1.26
1.42
1.89
1.89
Titanium
0.07
0.07
0.06
0.16
0.16
0.15
0.18
0.24
0.10
0.11
0.13
0.13
Total (n):
228,438
21,572
22,133
24,052
23,869
23,758
23,979
24,996
24,865
18,167
21,047
TKA: total knee arthroplasty.
© LROI 2022
Knee » Total knee arthroplasty » Materials » Tibia component
FIGURE Trend (proportion [%] per year) in tibia material in primary total knee arthroplasties in the Netherlands in 2012-2021
Year
Tibia material (%)
Titanium
50.11
52.07
55.15
54.49
54.08
53.02
52.67
50.83
48.52
51.22
52.34
52.34
Cobalt chrome
46.71
46.20
43.70
44.47
45.59
46.98
47.31
49.15
51.47
48.78
46.92
46.92
Cobalt Chrome/Titanium
3.16
1.71
1.14
1.03
0.34
0.00
0.00
0.00
0.00
0.00
0.72
0.72
Tantalum
0.02
0.02
0.01
0.00
0.00
0.00
0.02
0.02
0.01
0.00
0.01
0.01
Total (n):
229,182
21,503
22,115
24,046
23,901
24,127
24,153
25,014
25,049
18,186
21,088
Please note: A standard PE tibia component was implanted in 2 (<0.01%) primary TKAs in 2013-2016.
TKA: total knee arthroplasty; PE:polyethylene.
© LROI 2022
Knee » Total knee arthroplasty » Materials » Insert
FIGURE Trend (proportion [%] per year) in insert material in primary total knee arthroplasties in the Netherlands in 2012-2021
Year
Insert material (%)
Standard PE
91.20
90.79
88.65
87.02
85.16
83.28
81.06
77.04
76.00
72.49
83.35
83.35
Cross-linked PE
8.77
9.19
11.28
12.12
12.76
14.17
16.14
19.35
19.86
20.28
14.35
14.35
Cross-linked PE+AO
0.03
0.01
0.07
0.86
2.08
2.55
2.80
3.60
4.14
7.24
2.30
2.30
Total (n):
226,410
20,809
21,586
23,607
23,477
23,892
24,026
24,963
24,904
18,068
21,078
TKA: total knee arthroplasty; PE: polyethylene; AO: antioxidant.
© LROI 2022
Knee » Total knee arthroplasty » Materials » Patella component
FIGURE Trend (proportion [%] per year) in patella material in primary total knee arthroplasties in the Netherlands in 2012-2021
Year
Patella material (%)
Standard PE
97.87
97.22
97.05
94.72
93.36
93.95
95.27
94.64
93.68
89.89
94.80
94.80
Cross-linked PE
2.11
2.78
2.95
4.98
4.20
3.90
2.64
3.14
3.50
4.12
3.44
3.44
Cross-linked PE+AO
0.02
0.00
0.00
0.30
2.44
2.15
2.09
2.22
2.81
5.99
1.76
1.76
Total (n):
48,536
4,506
4,464
5,059
5,286
5,283
4,875
5,458
5,322
3,911
4,372
TKA: total knee arthroplasty; PE: polyethylene; AO: antioxidant.
© LROI 2022