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Mean scores
Knee » PROMs » Mean scores » NRS (rest)
FIGURE Mean pre-operative, 6 months and 12 months postoperative NRS (rest) scores of patients who underwent a TKA for osteoarthritis by NRS satisfaction score in the Netherlands in 2014-2022
TABLE Mean NRS (rest) scores
NRS (rest) score | Pre-operative | 6 months postoperative | 12 months postoperative | |||
NRS satisfaction | n | Mean (95% CI) | n | Mean (95% CI) | n | Mean (95% CI) |
Not satisfied: 0-4 | 2,485 | 5.44 (5.34-5.54) | 2,480 | 3.36 (3.25-3.46) | 2,517 | 3.52 (3.41-3.63) |
Moderately satisfied: 5-7 | 7,580 | 5.49 (5.44-5.54) | 7,675 | 2.99 (2.94-3.04) | 7,743 | 2.91 (2.85-2.96) |
Very satisfied: 8-10 | 24,709 | 5.05 (5.02-5.09) | 24,999 | 1.32 (1.29-1.34) | 25,284 | 0.87 (0.85-0.89) |
Total | 37,846 | 5.19 (5.16-5.21) | 38,313 | 1.84 (1.82-1.86) | 38,350 | 1.51 (1.49-1.53) |
The NRS (satisfaction) score measures patients’ satisfaction with the outcome of after joint replacement. The score has a range of 0.0 to 10.0, with 0.0 representing very unsatisfied and 10.0 representing very satisfied.
TKA: total knee arthroplasty; CI: confidence interval.
© LROI 2023
The NRS (rest) score measures pain during rest. The score has a range of 0.0 to 10.0, with 0.0 representing no pain and 10.0 representing the most possible pain.
Knee » PROMs » Mean scores » NRS (activity)
FIGURE Mean pre-operative, 6 months and 12 months postoperative NRS (activity) scores of patients who underwent a TKA for osteoarthritis by NRS satisfaction score in the Netherlands in 2014-2022
TABLE Mean NRS (activity) scores
NRS (activity) score | Pre-operative | 6 months postoperative | 12 months postoperative | |||
NRS satisfaction | n | Mean (95% CI) | n | Mean (95% CI) | n | Mean (95% CI) |
Not satisfied: 0-4 | 2,483 | 7.49 (7.42-7.57) | 2,477 | 4.71 (4.60-4.82) | 2,520 | 4.94 (4.81-5.06) |
Moderately satisfied: 5-7 | 7,576 | 7.46 (7.42-7.50) | 7,679 | 4.39 (4.34-4.44) | 7,745 | 4.33 (4.28-4.38) |
Very satisfied: 8-10 | 24,700 | 7.28 (7.26-7.31) | 25,004 | 2.16 (2.13-2.18) | 25,305 | 1.50 (1.47-1.52) |
Total | 37,828 | 7.32 (7.30-7.34) | 38,323 | 2.83 (2.80-2.85) | 38,371 | 2.35 (2.33-2.38) |
The NRS (satisfaction) score measures patients’ satisfaction with the outcome of after joint replacement. The score has a range of 0.0 to 10.0, with 0.0 representing very unsatisfied and 10.0 representing very satisfied.
TKA: total knee arthroplasty; CI: confidence interval.
© LROI 2023
The NRS (activity) score measures pain during activity. The score has a range of 0.0 to 10.0, with 0.0 representing no pain and 10.0 representing the most possible pain.
Knee » PROMs » Mean scores » EQ5D index score
FIGURE Mean pre-operative, 6 months and 12 months postoperative EQ-5D index scores of patients who underwent a TKA for osteoarthritis by NRS satisfaction score in the Netherlands in 2014-2022
TABLE Mean EQ-5D index scores
EQ-5D Index score | Pre-operative | 6 months postoperative | 12 months postoperative | |||
NRS satisfaction | n | Mean (95% CI) | n | Mean (95% CI) | n | Mean (95% CI) |
Not satisfied: 0-4 | 2,509 | 0.54 (0.53-0.55) | 2,463 | 0.64 (0.63-0.65) | 2,485 | 0.61 (0.60-0.62) |
Moderately satisfied: 5-7 | 7,705 | 0.54 (0.54-0.55) | 7,664 | 0.69 (0.68-0.69) | 7,706 | 0.69 (0.69-0.70) |
Very satisfied: 8-10 | 25,286 | 0.58 (0.58-0.58) | 25,111 | 0.83 (0.83-0.83) | 25,228 | 0.86 (0.86-0.86) |
Total | 39,015 | 0.57 (0.57-0.57) | 38,793 | 0.78 (0.78-0.79) | 38,493 | 0.81 (0.80-0.81) |
The NRS (satisfaction) score measures patients’ satisfaction with the outcome of after joint replacement. The score has a range of 0.0 to 10.0, with 0.0 representing very unsatisfied and 10.0 representing very satisfied.
TKA: total knee arthroplasty; CI: confidence interval.
© LROI 2023
The EQ-5D index score measures quality of life. The score has a range of -0.329 to 1.0, with 1.0 representing the best possible quality of life.
Knee » PROMs » Mean scores » EQ5D thermometer
FIGURE Mean pre-operative, 6 months and 12 months postoperative EQ-5D thermometer scores of patients who underwent a TKA for osteoarthritis by NRS satisfaction score in the Netherlands in 2014-2022
TABLE Mean EQ-5D thermometer scores
EQ-5D thermometer score | Pre-operative | 6 months postoperative | 12 months postoperative | |||
NRS satisfaction | n | Mean (95% CI) | n | Mean (95% CI) | n | Mean (95% CI) |
Not satisfied: 0-4 | 2,517 | 65.5 (64.7-66.3) | 2,484 | 65.7 (64.9-66.6) | 2,491 | 63.1 (62.2-63.9) |
Moderately satisfied: 5-7 | 7,716 | 65.7 (65.2-66.1) | 7,710 | 68.8 (68.4-69.2) | 7,742 | 68.2 (67.8-68.6) |
Very satisfied: 8-10 | 25,296 | 70.8 (70.5-71.0) | 25,272 | 78.6 (78.4-78.9) | 25,324 | 80.0 (79.8-80.3) |
Total | 39,102 | 69.0 (68.8-69.2) | 39,031 | 75.5 (75.3-75.6) | 38,698 | 76.0 (75.8-76.2) |
The NRS (satisfaction) score measures patients’ satisfaction with the outcome of after joint replacement. The score has a range of 0.0 to 10.0, with 0.0 representing very unsatisfied and 10.0 representing very satisfied.
TKA: total knee arthroplasty; CI: confidence interval.
© LROI 2023
The EQ-5D thermometer score measures the health situation. The score has a range of 0.0 to 100.0, with 0.0 representing the worst possible health situation and 100.0 the best possible health situation.
Knee » PROMs » Mean scores » KOOS-PS score
FIGURE Mean pre-operative, 6 months and 12 months postoperative KOOS-PS scores of patients who underwent a TKA for osteoarthritis by NRS satisfaction score in the Netherlands in 2014-2022
TABLE Mean KOOS-PS scores
KOOS-PS score | Pre-operative | 6 months postoperative | 12 months postoperative | |||
NRS satisfaction | n | Mean (95% CI) | n | Mean (95% CI) | n | Mean (95% CI) |
Not satisfied: 0-4 | 2,469 | 52.7 (52.1-53.3) | 2,413 | 40.7 (40.1-41.4) | 2,440 | 42.5 (41.7-43.2) |
Moderately satisfied: 5-7 | 7,597 | 52.4 (52.1-52.7) | 7,403 | 38.0 (37.8-38.3) | 7,477 | 37.7 (37.5-38.0) |
Very satisfied: 8-10 | 24,936 | 49.9 (49.7-50.0) | 24,435 | 26.5 (26.4-26.7) | 24,584 | 23.0 (22.9-23.2) |
Total | 38,451 | 50.6 (50.5-50.8) | 37,735 | 30.2 (30.0-30.3) | 37,548 | 27.7 (27.6-27.9) |
The NRS (satisfaction) score measures patients’ satisfaction with the outcome of after joint replacement. The score has a range of 0.0 to 10.0, with 0.0 representing very unsatisfied and 10.0 representing very satisfied.
TKA: total knee arthroplasty; CI: confidence interval.
© LROI 2023
The KOOS-PS score measures the physical functioning of patients with osteoarthritis to the knee. The score has a range of 0.0 to 100.0, with 0.0 representing no effort and 100.0 the most possible effort.
Knee » PROMs » Mean scores » Oxford Knee score
FIGURE Mean pre-operative, 6 months and 12 months postoperative Oxford Knee scores of patients who underwent a TKA for osteoarthritis by NRS satisfaction score in the Netherlands in 2014-2022
TABLE Mean Oxford Knee scores
Oxford Knee score | Pre-operative | 6 months postoperative | 12 months postoperative | |||
NRS satisfaction | n | Mean (95% CI) | n | Mean (95% CI) | n | Mean (95% CI) |
Not satisfied: 0-4 | 2,408 | 22.4 (22.1-22.7) | 2,378 | 29.3 (28.9-29.7) | 2,394 | 29.3 (28.9-29.8) |
Moderately satisfied: 5-7 | 7,347 | 22.8 (22.6-22.9) | 7,323 | 32.4 (32.3-32.6) | 7,378 | 33.1 (33.0-33.3) |
Very satisfied: 8-10 | 24,016 | 24.1 (24.0-24.2) | 23,974 | 39.9 (39.8-40.0) | 24,104 | 41.9 (41.9-42.0) |
Total | 36,895 | 23.7 (23.6-23.8) | 36,728 | 37.5 (37.4-37.6) | 36,348 | 39.1 (39.1-39.2) |
The NRS (satisfaction) score measures patients’ satisfaction with the outcome of after joint replacement. The score has a range of 0.0 to 10.0, with 0.0 representing very unsatisfied and 10.0 representing very satisfied.
TKA: total knee arthroplasty; CI: confidence interval.
© LROI 2023
The Oxford Knee score measures the physical functioning and pain of patients with osteoarthritis to the knee. The score has a range of 0.0 to 48.0, with 0.0 representing no functional ability and 48.0 the most functional ability.
Knee » PROMs » Mean scores » NRS (satisfaction)
FIGURE Mean 6 months and 12 months postoperative NRS (satisfaction) scores of patients who underwent a TKA for osteoarthritis in the Netherlands in 2014-2022
TABLE Mean NRS (statisfaction) scores
6 months postoperative | 12 months postoperative | |||
n | Mean (95% CI) | n | Mean (95% CI) | |
NRS satisfaction | 35,796 | 7.87 (7.84-7.89) | 35,936 | 7.98 (7.95-8.01) |
TKA: total knee arthroplasty; CI: confidence interval.
© LROI 2023
The NRS (satisfaction) score measures patients’ satisfaction with the outcome of after joint replacement.
The score has a range of 0.0 to 10.0, with 0.0 representing very unsatisfied and 10.0 representing very satisfied.
Knee » PROMs » Mean scores » Anchor question
FIGURE Mean 6 months and 12 months postoperative change in daily functioning and pain of patients who underwent a TKA for osteoarthritis in the Netherlands in 2014-2022
TABLE Mean anchor questions
6 months postoperative | 12 months postoperative | |||
Anchor question score | n | Mean (95% CI) | n | Mean (95% CI) |
Daily functioning | 37,712 | 5.52 (5.51-5.53) | 37,742 | 5.69 (5.67-5.70) |
Pain | 35,759 | 5.87 (5.86-5.88) | 35,781 | 6.00 (5.99-6.01) |
TKA: total knee arthroplasty; CI: confidence interval.
© LROI 2023