Table 2 Cut-off of the critical SI angle (CSIA). Results were adjusted for age and sex as possible confounders
From: Feasibility of iliosacral screw placement in patients with upper sacral dysplasia
Screw placement impossible n = 21 | Screw placement feasible n = 135 | Unadjusted RR (95% CI, p value) | Adjusted RR (95% CI, p value) | |
|---|---|---|---|---|
CSIA ≥ −14.2° | 3 (14.3%) | 116 (85.9%) | 36.6 (9.8 to 136.4) p < 0.001 | 37.9 (10.0 to 143.5) p < 0.001 |