Revision 1 Size and position of the healthy meniscus, and its Correlation with sex, height, weight, and bone area- a cross-sectional study

Table 1 Size and position of the medial meniscus in men and women

	Men Mean	SD	Women Mean	SD	Diff (%)	t-test
Tibial Plateau and Meniscus size
ACdAB	1169	122	952	85.7	22.7	<0.001
V	2407	520	1853	321	29.9	<0.001
TA	620	93.0	518	65.9	19.6	<0.001
FA	714	117	597	73.7	19.8	<0.001
EA	440	75.4	365	56.2	20.5	<0.001
TOT A	1774	276	1480	178	19.9	<0.001
TOT A/ACdAB	1.52	0.161	1.56	0.143	-2.45	0.221
Th.Me	2.80	0.292	2.55	0.245	10.1	<0.001
Th.Max	7.71	1.15	7.15	0.893	7.84	0.008
Wid.Me	9.93	1.06	9.11	0.875	8.99	<0.001
Wid.Max	18.8	2.08	16.9	1.61	11.1	<0.001
Meniscus position
TA.Uncovp	10.0	4.42	12.2	4.05	-18.2	0.012
mEx.Me	1.24	1.18	1.83	1.06	-32.4	0.011
mEx.Max	8.05	1.57	7.55	1.75	6.65	0.149
ACdAB.Covp	49.6	5.72	49.8	5.37	-0.36	0.874
OvD.Me	-12.0	1.31	-10.7	1.28	12.6	<0.001
OvD.Max	-4.66	1.44	-4.04	1.15	15.2	0.021

SD: standard deviation; Diff(%): difference in percent; t-Test: unpaired t-test; ACdAB: area of cartilage surface, including denuded areas of subchondral bone; V: volume; TA: tibial area; FA: femoral area; EA: external area; TOT A: sum of all three surface areas of the meniscus; Th.Me: mean thickness of the meniscus; Th.Max: maximal thickness of the meniscus; Wid.Me: mean width of the meniscus; Wid.max: maximal width of the meniscus; TA.uncovp: tibial area of the meniscus not covering the tibial plateau in percent; Ex.Me: mean external extrusion; Ex.Max: maximal external extrusion; ACdAB.Covp: area of cartilage surface covered with meniscus in percent; OvD.Me: mean overlap distance; OvD.Max: maximal overlap distance. Note that a positive value for meniscal extrusion indicates an "external" position relative to the external border of the tibial plateau, whereas a negative value indicates an "internal" position relative to the external border. A more negative value for the overlap distance indicates a more internal position of the inner margin of the meniscus.

ISSN: 1471-2474