Changes of content of adjacent and next-to-adjacent disks according to different manifestation of vertebral osteonecrosis
| Changes of Adjacent Disks | Changes in Affected Vertebrae | |||
|---|---|---|---|---|
| Air Only (n = 96) | Fluid with Air (n = 52) | Fluid Only (n = 94) | P Value | |
| Air in adjacent disks | 41 | 11 | <.05 | |
| Upper | 21 | 6 | 0 | |
| Lower | 20 | 5 | 0 | |
| Air in disks next to adjacent disks | 12 | 3 | <.05 | |
| Next to upper | 8 | 1 | 0 | |
| Next to lower | 4 | 2 | 0 | |