Table IV.

EuroQol five-dimension scores between bi-unicondylar arthroplasty and total knee arthroplasty groups by overall score and by individual domain. The best possible outcome for the overall score is 1. Each domain is graded 1 to 5 where 1 is the best overall outcome. Values are presented as means (standard deviations).

Category	Bi-UKA	TKA	p-value*
Overall EQ-5D	0.91 (0.1)	0.80 (0.1)	< 0.001
Mobility	1.4 (0.7)	2.2 (0.8)	0.001
Self-care	1.2 (0.5)	1.4 (0.6)	0.177
Usual activities	1.4 (0.6)	2.1 (0.9)	0.004
Pain	1.9 (0.7)	2.5 (0.6)	0.007
Anxiety	1.2 (0.5)	1.4 (0.7)	0.460

^*Mann-Whitney U test.

Bi-UKA, bi-unicondylar arthroplasty; EQ-5D, EuroQol five-dimension questionnaire; TKA, total knee arthroplasty.