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Table 1 Grades of disc degeneration in the total study population

From: Correlation between multifidus fatty atrophy and lumbar disc degeneration in low back pain

Pfirrmann Grade

L4/L5

L5/S1

Total Discs

%

I

2

1

3

4.3

II

8

7

15

21.4

III

18

11

29

41.4

IV

5

13

18

25.7

V

2

3

5

7.2