Table 3.
Number of sites and quality of MRI findings at diagnosis and follow-up (in brackets) in 13 patients
|
Qualitiy MRI findings |
Site |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| AA | AD | AO | C2/3 | C3/4 | C4/5 | C5/6 | C6/7 | Dens | Atlas | Sum | |
| Joint hyperintensity |
11 (9) |
10 (4) |
6 (2) |
1 (-) |
- |
- |
- |
- |
- |
- |
28 (15) |
| Joint enhancement |
12 (7) |
12 (10) |
7 (2) |
1 (-) |
- |
- |
- |
- |
- |
- |
32 (19) |
| Malalignment |
5 (2) |
7 (1) |
3 (-) |
- |
- |
- (1) |
- (1) |
- (1) |
- |
- |
15 (6) |
| Ankylosis |
- |
- |
- (1) |
2 (3) |
- |
- (1) |
- (1) |
- (1) |
- |
- |
2 (7) |
| Erosion |
- |
- |
- |
- |
- |
- |
- |
- |
1 (3) |
1 (3) |
2 (6) |
| Narrowing of the spinal canal at CCJ | 3 (4) | 3 (4) | |||||||||
Caption:
Hyperintensity (STIR see Methods) enhancement: pathological joint enhancement after gadolinium.
AA atlanto-axial joint.
AD atlanto-dental joint.
AO atlanto-occipital joint.
C facet joint of the cervical spine.
CCJ cranio-cervical junction.