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Table 3 Different types of radiologically detected (MRI) adjacent segment degenerative changes classified according to the Pfirmann and Metzdorf scale in relation to surgical options in the treatment of 194 follow-up patients

From: Early developed ASD (adjacent segmental disease) in patients after surgical treatment of the spine due to cancer metastases

Group Group A Group B Group C Group D Group E Group F Group G
Number of patients N(%) 31(16) 87(45) 6(3) 12(6) 9(5) 31(16) 18(9)
Grade 1 25 67 5 6 7 24 14
Grade 2 2 6 1 1 3 2
Grade 3 1 4 1 2 1 1
Grade 4 1 3 1 1 1
Grade 5 1 4 1 1
Others 1 3 2 1