Table 3.

Postoperative factors associated with satisfaction six months post surgery

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

Values are presented as median (minimum; maximum), unless otherwise indicated

*Less satisfied; patients who were somewhat satisfied, neutral, somewhat dissatisfied or very dissatisfied.

**Analyses were not performed with SPSS, because 100% had fulfilled expectations in one group.

OR; Odds Ratio, CI; Confidence Interval, 6-MWT; six-minutes walk test

Significant results are highlighted in bold