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Table 4: 
Distribution of degeneration grades and annular tears on initial MR imaging
Degeneration Grade
12345
Disks with no annular tears (n = 73)0 (0.00%)58 (79.45%)15 (20.54%)0 (0.00%)0 (0.00%)
Disks with annular tears (n = 203)0 (0.00%)45 (22.17%)90 (44.22%)42 (20.69%)26 (12.81%)
01031054226