Unicompartmental vs. segmental bicompartmental vs. total knee replacement: comparison of clinical outcomes

Table 2 Within-group statistical analysis of Oxford Knee Scores

	Pre-operative vs. 6 months		6 months vs. 1 year		1 year vs. 2 years
	p value	95%CI	p value	95%CI	p value	95%CI
UKR^a	0.046^*	0.4 to 30.8	0.336	− 5.7 to 10.3	N/A
BKR^b	< 0.001^*	11.3 to 19.9	0.071	− 0.3 to 4.8	0.635	− 17.5 to 13.5
TKR^c	< 0.001^*	13.6 to 21.9	0.535	− 2.2 to 4.1	0.078	− 0.3 to 3.5

Paired Student’s t test
95%CI confidence interval of mean difference
N/A not analysed as underpowered
^*Statistically significant at < 0.05 level
^aUKR unicompartmental knee replacement group (6 months: n = 21; 1 year: n = 15; 2 years: n = 4)
^bBKR bicompartmental knee replacement group (6 months: n = 39; 1 year: n = 26; 2 years: n = 15)
^cTKR total knee replacement group (6 months: n = 41; 1 year: n = 29; 2 years: n = 11)

ISSN: 2234-2451