Table 8 The Extrusion width (EW) and the Inner width (IW) of the medial meniscus (MM) and the lateral meniscus (LM) in the 10 matched control knees. The measurements were performed on the MR images taken before meniscectomy and at the time in a range from 3 to 50 weeks after the meniscectomy. In the “Changes between the 2 periods”, plus and minus values show an increase and a decrease of the width, respectively

1.

50’s, F

1.4

1.6

7.8

10.5

1.6

1.8

5.7

9.2

0.2

0.2

2.1

1.3

2.

60’s, F

2.8

−1.2

5.6

7.9

2.8

−1.6

3.6

7.8

0.0

−0.4

2.0

0.1

3.

60’s, F

1.4

−0.3

8.7

12.5

1.5

0.0

4.7

12.4

0.1

0.3

4.0

0.1

4.

60’s, F

4.4

1.9

5.2

5.2

4.6

2.2

2.4

5.2

0.2

0.3

2.8

0.0

5.

60’s, F

1.8

0.2

6.7

10.1

2.2

0.0

3.8

9.8

0.4

−0.2

2.9

0.3

6.

70’s, F

3.4

0.8

4.1

9.1

3.5

1.0

3.2

8.9

0.1

0.2

0.9

0.2

7.

70’s, F

2.7

−2.2

3.9

12.5

2.8

−2.1

2.7

12.6

0.1

0.1

1.2

−0.1

8.

70’s, F

2.9

0.6

8.5

9.7

3.5

1.1

4.8

7.1

0.6

0.5

3.7

2.6

9.

80’s, M

3.9

−0.6

7.2

15.3

5.5

−0.4

4.4

15.6

1.6

0.2

2.8

−0.3

10.

60’s, M

5.5

0.0

5.2

15.0

5.6

−0.1

3.3

15.3

0.1

−0.1

1.9

−0.3

Mean

3.0

0.1

6.3

10.8

3.4

0.2

3.9

10.4

0.3

0.1

2.4

0.4

(SD)

(1.3)

(1.2)

(1.7)

(3.0)

(1.4)

(1.3)

(1.0)

(3.3)

(0.5)

(0.3)

(0.9)

(0.9)

P = 0.0039 ^b

N.S. ^b

P = 0.0020 ^b

N.S. ^b