Table 1. Femorotibial compartments and cartilage plates.

Change in cartilage thickness (ThCtAB) over 12 months in knees without baseline JSN (no-JSN, n=308) and with baseline JSN (JSN, n=299).

	no-JSN			JSN			Between-Group
	MC [µm]	SD [µm]	MC [%]	MC [µm]	SD [µm]	MC [%]	DIFF [µm]	CI [µm]	p-value	SL
MFTC	−12	100	−0.3	−40	128	−1.2	28	10 / 46	.003*	.025
LFTC	−8	81	−0.2	−29	126	−0.8	21	4 / 38	.090	.025
MT	−2	46	−0.1	−10	55	−0.6	8	0 / 16	.027	.013
cMF	−11	76	−0.6	−30	96	−1.8	20	6 / 33	.007*	.013
LT	−10	48	−0.5	−21	70	−1.1	11	1 / 20	.119	.013
cLF	2	58	0.1	−7	84	−0.4	10	−2 / 21	.201	.013

MC = mean change in µm or %, SD = standard deviation, DIFF = mean difference between changes, CI = 95% confidence intervals of differences between changes (lower / upper limit), SL = Significance level after Bonferroni-Dunn correction: The significance (p value) of the differences between changes in JSN and no-JSN knees was computed using non-parametric Wilcoxon rank-sum tests and is reported in the table without adjustment for multiple comparisons. Compartments and cartilage plates showing significant differences after Bonferroni-Dunn correction (p<0.025 for compartments, p<0.0125 for cartilage plates) are marked with *.

MFTC = medial femorotibial compartment, LFTC = lateral femorotbial compartment; MT = medial tibia, cMF = central, weight-bearing part of the medial femoral condyle, LT = lateral tibia, cLF = central, weight-bearing part of the lateral femoral condyle.