Table 3 Forty-two vertebral level involvement in 31 patients in the two groups
Characteristic of involvement | DS (n = 15) | CR (n = 16) |
|---|---|---|
Multifocal involvement (%) | 6 (40) | 3 (22) |
Abscess formation (%) | 4 (26.7) | 9 (50) |
Vertebral level | Â | Â |
Cervical spine (n = 1) | Â | 1 |
   C5-6 |  | 1 |
Thoracal spine (n = 6) | 3 | 3 |
   T7-8 |  | 1 |
   T7-L2 |  | 1 |
   T9-10 | 2 | 1 |
   T11-12 | 1 |  |
Lumbar spine (n = 32) | 16 | 16 |
   L1-2 |  | 3 |
   L2-3 | 1 | 4 |
   L3-4 | 2 | 3 |
   L4-5 | 7 | 3 |
   L5-S1 | 6 | 3 |
Sacroiliitis (n = 3) | 3 | Â |