|
Table 3: SOSA classification. |
|
|
0 |
NCC 18-16 mm without myelopathy |
|
1 |
NCC 15-13 mm without myelopathy |
|
2a |
NCC 12-11 mm without myelopathy |
|
2b |
NCC 12-11 mm with myelopathy |
|
3a |
NCC 10-7 mm without myelopathy |
|
3b |
NCC 10-7 mm with myelopathy |
|
4 |
NCC 6 mm or less with myelopathy |
|
NCC = Narrow Cervical Canal. |
|