Table 1.

Evaluation of the Distribution of Lubricin in the Menisci and Labra

	Femoral surfacea			Tibial/acetabular surface			Extracellular matrixb
No.	Inner	Middle	Outer	Inner	Middle	Outer	Inner	Middle	Outer	Intracellularlyc (% lubricin-positive cells)
Menisci
1	100	100	100	40	100	100	++	+	+	5 ± 9
2	100	100	100	100	100	100	+++	+	+	8 ± 2
3	100	100	100	100	100	100	++++	++++	++	4 ± 3
4	100	100	100	100	100	100	++++	++++	+	21 ± 14
5	90	70	10	70	60	20	+	+	+	10 ± 12
6	100	100	100	100	100	100	++	+++	++	7 ± 5
7	100	100	100	100	100	100	++++	++++	++++	25 ± 9
8	100	100	80	80	70	60	+	+	+	1 ± 2
9	90	100	80	100	100	100	++	+	+	7 ± 7
10	100	100	100	100	100	100	+	+	+++	19 ± 18
11	100	100	100	100	100	90	+++	+++	+++	18 ± 10
12	100	100	100	100	100	100	+	+	+	1 ± 2
13	20	30	60	80	90	50	+	+	+	4 ± 9
14	80	80	20	60	20	10	+	+	+	4 ± 9
15	100	100	100	100	20	80	++++	++++	++	16 ± 10
16	100	90	100	40	100	100	+++	++++	+++	15 ± 17
17	100	100	100	100	100	100	++	++	++	17 ± 16
18	100	100	100	100	100	100	+	++	+	9 ±19
Labra
1	100	100	100	10	5	0	+	+	++	15 ± 18
2	100	100	100	100	100	100	++++	+	+	10 ± 10
3	100	100	100	20	70	90	+	+	+	2 ± 4
4	100	100	100	50	10	0	++++	++++	++++	35 ± 28
5	80	40	0	5	0	0	+	++	++	11 ± 8
6	100	100	100	10	10	0	++++	+++	++	27 ± 21

^aThe linear percentages of the inner, middle, and outer thirds of the femoral and tibial facing surfaces for the menisci and of the femoral and acetabular facing surfaces for the labra were determined.

^bThe degree of lubricin staining of the extracellular matrix was graded from 0 to ++++ as described in the text.

^cThe percentage of cells containing lubricin (i.e., intracellular lubricin) was determined for each sample; mean ± standard deviation for the fields of view evaluated for each sample.