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Table 5 Time course changes of

From: Characteristics of relief and residual low back pain after discectomy in patients with lumbar disc herniation: analysis using a detailed visual analog scale

A. Pfirrmann grade
  1 year after surgery
2 3 4 5 Total
Before surgery 2   2    2
3   26 13   39
4    17 2 19
5     2 2
Total   28 30 4 62
B. Modic type
  1 year after surgery
None 1 2 3 Total
Before surgery None 40 4 3 1 48
1   2 1   3
2   1 8 1 10
3   1    1
Total 40 8 12 2 62