Table 2 Sub-classification of Type 4 sacroiliac joint ankylosis
From: Sacroiliac joint variation associated with diffuse idiopathic skeletal hyperostosis
DISH- | DISH+ | |
|---|---|---|
Number of SI joints | 27 | 74 |
Anterior (Type 4A, %) | 22 (81.5%) | 53 (71.6%) |
Posterior (Type 4B, %) | 0 (0%) | 4 (5.4%) |
Intraarticular (Type 4C, %) | 5 (18.5%) | 17 (23.0%) |