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Table 6 Distribution of fat infiltration in the MF and ES according to the number of herniations

From: The relationship between the degeneration and asymmetry of the lumbar multifidus and erector spinae muscles in patients with lumbar disc herniation with and without root compression

 

Number of herniations

 

1

2

3

Right MF

   

 < 10%

18 (56.3)

18 (52.9)

16 (39)

10–50%

14 (43.8)

16 (47.1)

21 (51.2)

 > 50%

0 (0)

0 (0)

4 (9.8)

Left MF

   

 < 10%

20 (62.5)

19 (55.9)

16 (39)

10–50%

12 (37.5)

14 (41.2)

21 (51.2)

 > 50%

0 (0)

1 (2.9)

4 (9.8)

Right ES

   

 < 10%

21 (65.6)a

16 (47.1)ab

10 (24.4)b

10–50%

11 (34.4)a

18 (52.9)ab

30 (73.2)b

 > 50%

0 (0)

0 (0)

1 (2.4)

Left ES

   

 < 10%

22 (68.8)a

17 (50)ab

11 (26.8)b

10–50%

10 (31.3)a

17 (50)ab

30 (73.2)b

 > 50%

–

–

–

  1. a−a, b−b, ab−abNo difference between groups with the same letter, a−bA difference was found between groups with different letters, abThere was no difference from the other two groups