Table 5.

Descriptive values and their comparison between groups.

	Group	Period	Mean	SD	Median	Min–Max	IQR	p
Patella level	1	Preop	41.9	4.4	40.0	37–51	5.8	<0.001
		6 h	43.5	4.5	41.0	39–52	7.3
		24 h	44.0	4.5	42.5	38–54	7.3
		48 h	44.2	4.6	42.5	37–55	6
	2	Preop	41.7	2.0	42.0	36–45	3
		6 h	42.5	1.8	43.0	37–46	3
		24 h	42.6	2.0	43.0	37–46	3
		48 h	43.0	2.0	43.0	37–47	4
	3	Preop	43.8	3.3	43.0	39–52	2.5
		6 h	44.8	3.5	44.0	40–53	4
		24 h	45.0	3.6	45.0	40–53	4
		48 h	45.5	3.7	45.0	41–55	4
Patella lower end	1	Preop	39.6	4.4	38.0	33–50	3.3	0.275
		6 h	40.5	4.3	39.0	34–50	5
		24 h	41.1	5.1	39.0	34–55	4.5
		48 h	41.1	4.3	40.5	33-52	4.5
	2	Preop	38.1	1.9	39.0	30–40	2
		6 h	39.0	1.5	39.0	36–41	2
		24 h	39.1	1.3	39.0	37–41	2
		48 h	39.3	1.3	39.5	37–41	3
	3	Preop	39.3	2.9	39.0	36–48	2
		6 h	40.4	2.8	40.0	37–48	2.5
		24 h	40.8	3.0	40.0	37–49	3.5
		48 h	41.2	3.2	41.0	36–50	2.5
Patella upper end	1	Preop	46.1	4.9	44.0	40–57	7.3	0.063
		6 h	47.2	4.8	45.5	41–58	8
		24 h	47.7	5.6	47.5	39–60	7.3
		48 h	47.5	5.1	47.0	40–60	7.3
	2	Preop	47.3	2.0	48.0	43–50	3
		6 h	48.2	2.0	49.0	44–51	3
		24 h	48.6	2.2	49.0	44–53	3
		48 h	48.9	2.2	49.0	44-53	2.3
	3	Preop	49.4	3.6	49.0	43–56	4.5
		6 h	50.4	3.8	50.0	43–57	4.5
		24 h	50.9	3.7	51.0	44–58	4
		48 h	51.5	3.9	51.0	44–60	4.5

SD: standard deviation, Min: minimum, Max: maximum, IQR: interquartile range.