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Table 2 Different types of radiologically detected (MRI) adjacent segment degenerative changes classified according to the systems by Oner, Rijt, and Ramos 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)
Type 1 28 76 6 9 8 28 17
Type 2 1 3 1 1 1
Type 3 1 3 1
Type 4 1
Type 5 1 1
Type 6 1 4 1 1