Sacroiliac joints (NY Criteria)
|
0 | Normal | No change |
I | Suspicious | Suspicious change |
II | Minimal | Small localised areas with erosion or sclerosis without alteration in joint width |
III | Moderate | Moderate or advanced sacroilitis with erosions, evidence of sclerosis, widening, narrowing, or partial ankylosing |
IV | Severe | Severe abnormality with total ankylosis |
| | |
Hip
| | |
0 | Normal | No change |
I* | Suspicious | (Possible) focal joint space narrowing |
II* | Minimal | Definite narrowing leaving a circumferential joint space >2 mm |
III | Moderate | Narrowing with circumferential joint space ≤2 mm or bone-on-bone apposition of <2 cm |
IV | Severe | Bone deformity or bone-on-bone apposition >2 cm |
|
AP and lateral lumbar and lateral cervical spine
|
0 | Normal | No change |
I | Suspicious | Suspicious but no definite change |
II | Minimal | Any number of erosions, squaring, sclerosis ± syndesmophytes on ≤2 vertebrae |
III | Moderate | Syndesmophytes on ≥3 vertebrae ± fusion involving 2 vertebrae |
IV | Severe | Fusion involving ≥3 vertebrae |
| | |
BASRI spine
| | Maximum=12 |
BASRI total
| | Maximum=16 |