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Table 3 Postoperative factors associated with satisfaction six months postsurgery

From: Functional capacity and actual daily activity do not contribute to patient satisfaction after total knee arthroplasty

Determinants Satisfied Less satisfied* OR (95% CI) p-value
  n = 22 (50%) n = 22 (50%)   
Physical capacity
6-MWT (m) 428 (152; 580) 368 (132; 485) 1.008 (1.001; 1.02) 0.034
Stair climbing (s) 7.3 (5; 18) 9.1 (6.4; 22.8) 0.825 (0.67; 1.02) 0.073
Rising from chair (s) 15 (9.7; 20.8) 16.9 (10; 32.5) 0.872 (0.735; 1.033) 0.113
Actual daily activity
Movement-related activity, % 8.1 (3.2; 17.0) 9.8 (2.8; 18.8) 0.978 (0.839; 1.139) 0.773
of 24 h     
Upright, % of 24 h 20.1 (13.7;39.9) 19.2 (7.2; 30.2) 1.039 (0.936; 1.153) 0.471
Fulfilled expectations
Pain, totally, % (number) 100 (22) 27.3 (6) -** -**
Limitations, totally, % 68.2 (15) 13.6 (3) 13.6 (2.99; 61.59) 0.001
(number)     
Overall success, totally, % 90.9 (20) 22.7 (5) 34.0 (5.83; 198.15) < 0.0001
(number)     
Joint function and structure
Strength quadriceps, Newton 216 (156; 307) 195 (106; 293) 1.010 (0.996; 1.023) 0.150
Stiffness (WOMAC stiffness) 70 (30; 80) 40 (0; 80) 1.107 (1.04; 1.18) 0.001
Pain (WOMAC pain) 80 (4; 80) 52 (16; 76) 1.101 (1.04; 1.18) 0.002
Self-reported physical
functioning
WOMAC Physical functioning 74.1 (21.2; 80) 45.9 (5.9; 74.1) 1.112 (1.04; 1.19) 0.001
SF-36 Physical functioning 77.5 (20; 100) 45.0 (10; 90) 1.052 (1.02; 1.09) 0.003
Self-reported mental
functioning
SF-36 Mental Health 92 (36; 100) 56 (20; 96) 1.076 (1.03; 1.13) 0.001
HADS anxiety, % case (n) 13.6 (3) 45.5 (10) 0.189 (0.04; 0.83) 0.027
HADS depression, % case (n) 9.1 (2) 40.9 (9) 0.144 (0.03; 0.78) 0.024
  1. Values are presented as median (minimum; maximum), unless otherwise indicated
  2. *Less satisfied; patients who were somewhat satisfied, neutral, somewhat dissatisfied or very dissatisfied.
  3. **Analyses were not performed with SPSS, because 100% had fulfilled expectations in one group.
  4. OR; Odds Ratio, CI; Confidence Interval, 6-MWT; six-minutes walk test
  5. Significant results are highlighted in bold